"Your Sustainer has ordained that you should worship none but Him, and do good to your parents. Should one, or both of them, attain old age while in your care, never say 'Ugh' to them or scold them, but always speak to them with respectful speech. And spread over them the wings of humility and say, 'Oh my Sustainer! Bestow Your grace upon them, as they did cherish and rear me when I was a child!'" (17:23-24).