Bismillah.

"We have enjoined on man kindness to his parents; in pain did his mother bear him, and in pain did she give him birth" (46:15).

"We have enjoined on man and woman (to be good) to his/her parents; show gratitude to Me and to thy parents; to Me is (thy final) Goal. If they (parents) strive to make thee join in worship with Me things of which thou hast no knowledge, obey them not; yet bear them company in this life with justice (and consideration) and follow the way of those who turn to Me (in love)" (31:14-15).

A man came to the Prophet and said, ‘O Messenger of God! Who among the people is the most worthy of my good companionship? The Prophet said: Your mother. The man said, ‘Then who?' The Prophet said: Then your mother. The man further asked, ‘Then who?' The Prophet said: Then your mother. The man asked again, ‘Then who?' The Prophet said: Then your father. (Bukhari, Muslim).