بسم الله الرحمن الرحیم
The first ten days of this month are full of significance and merit. The Holy Prophet (saww) has said: There are no days when Allah is as pleased with good deeds as He is in these ten days.
1.Keep fast on the first 9 days of the month of Dhilhijja (not on the 10th). In a tradition from Imam Musa Kazim (Pbuh), if a person fasts on the first nine days of Dhilhijja, Allah (swt) gives him the reward of a lifetime of fasting.