Soon it will be Ramadan. Fasting Ramadan is one of the five principles of Islam and in the following some Hadiths of prophet Mohamed, peace be upon him, in regards:

Translation:Narrated Abu Hurairah (RA): Allahs Apostle ﷺ said, "When the month of Ramadan starts, the gates of the heaven are opened and the gates of Hell are closed and the devils are chained."

حَدَّثَنِي يَحْيَى بْنُ بُكَيْرٍ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنِي اللَّيْثُ ، ‏‏‏‏‏‏عَنْ عُقَيْلٍ ، ‏‏‏‏‏‏عَنِ ابْنِ شِهَابٍ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏

أَخْبَرَنِي ابْنُ أَبِي أَنَسٍ مَوْلَى التَّيْمِيِّينَ أَنَّ أَبَاهُ حَدَّثَهُ، ‏‏‏‏‏‏أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ، ‏‏‏‏‏‏يَقُولُ:‏‏‏‏ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:‏‏‏‏ إِذَا دَخَلَ شَهْرُ رَمَضَانَ، ‏‏‏‏‏‏فُتِّحَتْ أَبْوَابُ السَّمَاءِ، ‏‏‏‏‏‏وَغُلِّقَتْ أَبْوَابُ جَهَنَّمَ، ‏‏‏‏‏‏وَسُلْسِلَتِ الشَّيَاطِينُ.

Narrated Ibn Umar (RA) : Allahs Apostle ﷺ said: Islam is built on (the following) five (principles):

1. To testify that none has the right to be worshipped but Allah and Muhammad ﷺ is Allahs Apostle (to believe in the first principle is the first step to become a Muslim usually done in front of two Muslim witnesses and in Arabic while understanding it’s meaning, it’s called Shahada (to testify): “Ashhasu an laa illaha illa Allah, wa Ashhadu an Mohamed Abduhu wa rasoloh. If unable to find witnesses or to go to the nearest mosque, God is your witness).

2. To offer the (compulsory congregational) prayers (Salat, 5 compulsory prayers each day. The first thing to be questioned about on Judgement Day is Salat).

3. To pay Zakat (i.e. obligatory charity).

4. To perform Hajj. (i.e. Pilgrimage to Makkah. If able to)

5. To observe fast during the month of Ramadan (from dawn until sunset, Maghrib prayer as mentioned in the following verse of the Quran:

أُحِلَّ لَكُمْ لَيْلَةَ الصِّيَامِ الرَّفَثُ إِلَىٰ نِسَائِكُمْ ۚ هُنَّ لِبَاسٌ لَكُمْ وَأَنْتُمْ لِبَاسٌ لَهُنَّ ۗ عَلِمَ اللَّهُ أَنَّكُمْ كُنْتُمْ تَخْتَانُونَ أَنْفُسَكُمْ فَتَابَ عَلَيْكُمْ وَعَفَا عَنْكُمْ ۖ فَالْآنَ بَاشِرُوهُنَّ وَابْتَغُوا مَا كَتَبَ اللَّهُ لَكُمْ ۚ وَكُلُوا وَاشْرَبُوا حَتَّىٰ يَتَبَيَّنَ لَكُمُ الْخَيْطُ الْأَبْيَضُ مِنَ الْخَيْطِ الْأَسْوَدِ مِنَ الْفَجْرِ ۖ ثُمَّ أَتِمُّوا الصِّيَامَ إِلَى اللَّيْلِ ۚ وَلَا تُبَاشِرُوهُنَّ وَأَنْتُمْ عَاكِفُونَ فِي الْمَسَاجِدِ ۗ تِلْكَ حُدُودُ اللَّهِ فَلَا تَقْرَبُوهَا ۗ كَذَٰلِكَ يُبَيِّنُ اللَّهُ آيَاتِهِ لِلنَّاسِ لَعَلَّهُمْ يَتَّقُونَ

It is made lawful for you to have sexual relations with your wives on the night of As-Saum (the fasts). They are Libas [i.e. body cover, or screen, or Sakan, (i.e. you enjoy the pleasure of living with her - as in Verse 7:189) Tafsir At-Tabari], for you and you are the same for them. Allah knows that you used to deceive yourselves, so He turned to you (accepted your repentance) and forgave you. So now have sexual relations with them and seek that which Allah has ordained for you (offspring), and eat and drink until the white thread (light) of dawn appears to you distinct from the black thread (darkness of night), then complete your Saum (fast) till the nightfall. And do not have sexual relations with them (your wives) while you are in I'tikaf (i.e. confining oneself in a mosque for prayers and invocations leaving the worldly activities) in the mosques. These are the limits (set) by Allah, so approach them not. Thus does Allah make clear His Ayat (proofs, evidences, lessons, signs, revelations, verses, laws, legal and illegal things, Allah's set limits, orders, etc.) to mankind that they may become Al-Muttaqun (the pious - see V. 2:2).

حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُوسَى ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ أَخْبَرَنَا حَنْظَلَةُ بْنُ أَبِي سُفْيَانَ ، ‏‏‏‏‏‏عَنْ عِكْرِمَةَ بْنِ خَالِدٍ ، ‏‏‏‏‏‏عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا، ‏‏‏‏‏‏قَالَ:‏‏‏‏

قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:‏‏‏‏ بُنِيَ الْإِسْلَامُ عَلَى خَمْسٍ، ‏‏‏‏‏‏شَهَادَةِ أَنْ لَا إِلَهَ إِلَّا اللَّهُ وَأَنَّ مُحَمَّدًا رَسُولُ اللَّهِ، ‏‏‏‏‏‏وَإِقَامِ الصَّلَاةِ، ‏‏‏‏‏‏وَإِيتَاءِ الزَّكَاةِ، ‏‏‏‏‏‏وَالْحَجِّ، ‏‏‏‏‏‏وَصَوْمِ رَمَضَانَ.

Translation:Narrated Abu Hurairah (RA): The Prophet ﷺ said, "Whoever established prayers on the night of Qadr out of sincere faith and hoping for a reward from Allah, then all his previous sins will be forgiven; and whoever fasts in the month of Ramadan out of sincere faith, and hoping for a reward from Allah, then all his previous sins will be forgiven."

حَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ ، ‏‏‏‏‏‏حَدَّثَنَا هِشَامٌ ، ‏‏‏‏‏‏حَدَّثَنَا يَحْيَى ، ‏‏‏‏‏‏عَنْ أَبِي سَلَمَةَ ، ‏‏‏‏‏‏عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ، ‏‏‏‏‏‏عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏

مَنْ قَامَ لَيْلَةَ الْقَدْرِ إِيمَانًا وَاحْتِسَابًا، ‏‏‏‏‏‏غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ، ‏‏‏‏‏‏وَمَنْ صَامَ رَمَضَانَ إِيمَانًا وَاحْتِسَابًا، ‏‏‏‏‏‏غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ.

Narrated Abu Hurairah (RA): Allahs Apostle ﷺ said, "Allah said, All the deeds of Adams sons (people) are for them, except fasting which is for Me, and I will give the reward for it. Fasting is a shield or protection from the fire and from committing sins. If one of you is fasting, he should avoid sexual relation with his wife and quarreling, and if somebody should fight or quarrel with him, he should say, I am fasting. By Him in Whose Hands my soul is The unpleasant smell coming out from the mouth of a fasting person is better in the sight of Allah than the smell of musk. There are two pleasures for the fasting person, one at the time of breaking his fast, and the other at the time when he will meet his Lord; then he will be pleased because of his fasting."

حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُوسَى ، ‏‏‏‏‏‏أَخْبَرَنَا هِشَامُ بْنُ يُوسُفَ ، ‏‏‏‏‏‏عَنِ ابْنِ جُرَيْجٍ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ أَخْبَرَنِي عَطَاءٌ ، ‏‏‏‏‏‏عَنْ أَبِي صَالِحٍ الزَّيَّاتِ ، ‏‏‏‏‏‏أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ، ‏‏‏‏‏‏يَقُولُ:‏‏‏‏ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:‏‏‏‏ قَالَ اللَّهُ:‏‏‏‏

كُلُّ عَمَلِ ابْنِ آدَمَ لَهُ، ‏‏‏‏‏‏إِلَّا الصِّيَامَ فَإِنَّهُ لِي، ‏‏‏‏‏‏وَأَنَا أَجْزِي بِهِ، ‏‏‏‏‏‏وَالصِّيَامُ جُنَّةٌ، ‏‏‏‏‏‏وَإِذَا كَانَ يَوْمُ صَوْمِ أَحَدِكُمْ فَلَا يَرْفُثْ وَلَا يَصْخَبْ، ‏‏‏‏‏‏فَإِنْ سَابَّهُ أَحَدٌ أَوْ قَاتَلَهُ، ‏‏‏‏‏‏فَلْيَقُلْ:‏‏‏‏ إِنِّي امْرُؤٌ صَائِمٌ، ‏‏‏‏‏‏وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ، ‏‏‏‏‏‏لَخُلُوفُ فَمِ الصَّائِمِ أَطْيَبُ عِنْدَ اللَّهِ مِنْ رِيحِ الْمِسْكِ، ‏‏‏‏‏‏لِلصَّائِمِ فَرْحَتَانِ يَفْرَحُهُمَا:‏‏‏‏ إِذَا أَفْطَرَ فَرِحَ، ‏‏‏‏‏‏وَإِذَا لَقِيَ رَبَّهُ فَرِحَ بِصَوْمِهِ.

Narrated Abu Hurairah (RA): Allahs Apostle ﷺ said, "Whoever gives two kinds (of things or property) in charity for Allahs Cause, will be called from the gates of Paradise and will be addressed, O slaves of Allah! Here is prosperity. So, whoever was amongst the people who used to offer their prayers, will be called from the gate of the prayer; and whoever was amongst the people who used to participate in Jihad, will be called from the gate of Jihad; and whoever was amongst those who used to observe fasts, will be called from the gate of Ar-Raiyan; whoever was amongst those who used to give in charity, will be called from the gate of charity." Abu Bakr (RA) said, "Let my parents be sacrificed for you, O Allahs Apostle ﷺ ! No distress or need will befall him who will be called from those gates. Will there be any one who will be called from all these gates?" The Prophet ﷺ replied, "Yes, and I hope you will be one of them."

حَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنِي مَعْنٌ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنِي مَالِكٌ ، ‏‏‏‏‏‏عَنِ ابْنِ شِهَابٍ ، ‏‏‏‏‏‏عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ ، ‏‏‏‏‏‏عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ، ‏‏‏‏‏‏أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ مَنْ أَنْفَقَ زَوْجَيْنِ فِي سَبِيلِ اللَّهِ نُودِيَ مِنْ أَبْوَابِ الْجَنَّةِ:‏‏‏‏ يَا عَبْدَ اللَّهِ، ‏‏‏‏‏‏هَذَا خَيْرٌ، ‏‏‏‏‏‏فَمَنْ كَانَ مِنْ أَهْلِ الصَّلَاةِ دُعِيَ مِنْ بَابِ الصَّلَاةِ، ‏‏‏‏‏‏وَمَنْ كَانَ مِنْ أَهْلِ الْجِهَادِ دُعِيَ مِنْ بَابِ الْجِهَادِ، ‏‏‏‏‏‏وَمَنْ كَانَ مِنْ أَهْلِ الصِّيَامِ دُعِيَ مِنْ بَابِ الرَّيَّانِ، ‏‏‏‏‏‏وَمَنْ كَانَ مِنْ أَهْلِ الصَّدَقَةِ دُعِيَ مِنْ بَابِ الصَّدَقَةِ، ‏‏‏‏‏‏فَقَالَ أَبُو بَكْرٍ رَضِيَ اللَّهُ عَنْهُ:‏‏‏‏ بِأَبِي أَنْتَ وَأُمِّي يَا رَسُولَ اللَّهِ، ‏‏‏‏‏‏مَا عَلَى مَنْ دُعِيَ مِنْ تِلْكَ الْأَبْوَابِ مِنْ ضَرُورَةٍ، ‏‏‏‏‏‏فَهَلْ يُدْعَى أَحَدٌ مِنْ تِلْكَ الْأَبْوَابِ كُلِّهَا، ‏‏‏‏‏‏قَالَ:‏‏‏‏ نَعَمْ، ‏‏‏‏‏‏وَأَرْجُو أَنْ تَكُونَ مِنْهُمْ.

Narrated Ibn Umar (RA): I heard Allahs Apostle ﷺ saying, "When you see the crescent (of the month of Ramadan), start fasting, and when you see the crescent (of the month of Shawwal), stop fasting; and if the sky is overcast (and you cant see It) then regard the crescent (month) of Ramadan (as of 3O days)".

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنِي اللَّيْثُ ، ‏‏‏‏‏‏عَنْ عُقَيْلٍ ، ‏‏‏‏‏‏عَنِ ابْنِ شِهَابٍ ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ أَخْبَرَنِي سَالِمُ بْنُ عَبْدِ اللَّهِ بْنِ عُمَرَ ، ‏‏‏‏‏‏أَنَّ ابْنَ عُمَرَ رَضِيَ اللَّهُ عَنْهُ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ سَمِعْتُ رَسُولَ اللَّه صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏يَقُولُ:‏‏‏‏ إِذَا رَأَيْتُمُوهُ فَصُومُوا، ‏‏‏‏‏‏وَإِذَا رَأَيْتُمُوهُ فَأَفْطِرُوا، ‏‏‏‏‏‏فَإِنْ غُمَّ عَلَيْكُمْ فَاقْدُرُوا لَهُ، ‏‏‏‏‏‏وَقَالَ غَيْرُهُ ، ‏‏‏‏‏‏عَنِ اللَّيْثِ ، ‏‏‏‏‏‏حَدَّثَنِي عُقَيْلٌ وَيُونُسُ لِهِلَالِ رَمَضَانَ.