And We have enjoined on man, doing of good to his parents, his mother bears him with hardship and delivers him with hardship, and the bearing of him and the weaning of him takes thirty months, until when he reaches his strength (maturity) and reaches forty years, he says, “O my Fosterer! arouse me that I may be grateful for Your favour which You have bestowed on me and my parents and that I may do righteous work which pleases You, and set right for me (the affair) in (connection with) my descendants, I certainly turn to You and I am certainly of those who submit (as Muslims).”