What is the stance of Islam on parents' and relatives' rights?

{Your Lord has ordained that you worship none but Him, and show kindness to parents. If one or both of them reach old age in your care, do not say to them a word of annoyance nor scold them, rather speak to them noble words, and lower to them the wing of humility out of mercy, and say, “My Lord, have mercy upon them as they raised me when I was small.”} [246] Surat al-Isrā’: 23-24.

{We have enjoined upon man kindness to his parents. His mother bore him in hardship and gave birth to him in hardship, and his bearing and weaning take thirty months, until when he reaches full maturity and reaches forty years, he says, “My Lord, inspire me to be grateful to Your favors which You blessed me and my parents with, and to do righteous deeds that will make You pleased; and make my offspring righteous. Indeed, I repent to you, and I am one of the Muslims [submitting to You].”} [247] Surat al-Ahqāf: 15.

{Give relatives their due, and the needy and the stranded travelers, and do not spend wastefully.} [248] Surat al-Isrā’: 26.