Allah, the Exalted, says:
"Worship Allah and join none with Him (in worship); and do good to
parents, kinsfolk, orphans, Al-Masakin (the poor), the neighbour who is
near of kin, the neighbour who is a stranger, the companion by your
side, the wayfarer (you meet), and those (slaves) whom your right hands
possess". (4:36)
"And fear Allah through Whom you demand (your mutual rights), and (do
not cut the relations of) the wombs (kinship)". (4:1) "And those who
join that which Allah has commanded to be joined (i.e., they are good
to their relatives and do not sever the bond of kinship)". (13:21)
"And we have enjoined on man to be good and dutiful to his parents". (29:8)
"And your Rubb has decreed that you worship none but Him. And that you
be dutiful to your parents. If one of them or both of them attain old
age in your life, say not to them a word of disrespect, nor shout at
them but address them in terms of honour. And lower unto them the wing
of submission and humility through mercy, and say: `My Rubb! Bestow on
them Your Mercy as they did bring me up when I was young". (17:23,24)
"And We have enjoined on man (to be dutiful and good) to his parents.
His mother bore him in weakness and hardship upon weakness and
hardship, and his weaning is in two years- give thanks to Me and to
your parents". (31:14)