Islam and parents: Imam Ali (as)

Being good to parents is the greatest [and most important ] duty.

Be good to your parents and your children will be good to you.

Whoever is good to his parents, his child will be good to him.

The death of a father breaks one's back.

One who scorns his parents has diverged from the right path.

The affection of parents is [the basis of] the relationship between siblings.