We have enjoined man to be kind to his parents. In pain did his mother bear him and in pain did she give birth to him. The carrying of the child to his weaning is a period of thirty months. And when he is grown to full maturity and reaches the age of forty, he prays: “My Lord, dispose me that I may give thanks for the bounty that You have bestowed upon me and my parents, and dispose me that I may do righteous deeds that would please You, and also make my descendants righteous. I repent to You, and I am one of those who surrender themselves to You.”