Duty to, is frequently enjoined in the Qur’an; for example, Surah xvii. 24, 25: “Thy Lord hath decreed that ye shall not serve other than Him, and that ye shall be kind to your parents, whether one or both of them reach old age with thee; and. ye must not say, ‘Fie!’ (Uff) nor grumble at them, but speak to them a generous speech. And lower to them the wing of humility out, of compassion, and say,’O Lord! have compassion on them, as they brought me up when I was little!
Based on Hughes, Dictionary of Islam