And We have enjoined on man the doing of good to his parents. His mother bears him with trouble and she brings him forth in pain. And the bearing of him and the weaning of him is thirty months. Till, when he attains his maturity and reaches forty years, he says: My Lord, grant me that I may give thanks for Thy favour, which Thou has bestowed on me and on my parents, and that I may do good which pleases Thee; and be good to me in respect of my offspring. Truly I turn to Thee, and truly I am of those who submit.