Yes, the last 10 days of Hajj are considered to be the most holy and blessed days of the pilgrimage. These days start from the 8th day of Dhu al-Hijjah and continue until the 13th day of the month.

During these days, pilgrims are encouraged to spend their time in prayers and worship, as it is believed that the rewards for good deeds during this period are multiplied many times over.

One of the most important rituals of the last 10 days is the Day of Arafat, on the 9th day of Dhu al-Hijjah. On this day, pilgrims gather on the plains of Arafat to perform their religious duties and seek God's forgiveness.

Another important ritual is the offering of a sacrifice, known as Qurbani. This usually takes place on the 10th, 11th, or 12th day of Dhu al-Hijjah, and involves the slaughtering of an animal such as a sheep or a cow in remembrance of Prophet Ibrahim's willingness to sacrifice his son, as a test of faith.

Throughout the last 10 days of Hajj, Islamic teachings emphasize the importance of acts of charity, self-reflection, and seeking forgiveness from God.