islam considered kindness to parents next to the worship of god.

"and we have enjoined upon man (to be good) to his parents: his mother bears him in weakness upon weakness..." [noble quran 31:14] [see also quran 46:15, 29:8]

moreover, the quran has a special recommendation for the good treatment of mothers:

"your lord has decreed that you worship none save him, and that you be kind to your parents..." [noble quran 17:23]

a man came to prophet muhammad (peace and blessings be upon him) asking:

o messenger of god, who among the people is the most worthy of my good company? the prophet (peace and blessings be upon him) said, your mother. the man said then who else: the prophet (peace and blessings be upon him) said, your mother. the man asked, then who else? the prophet (peace and blessings be upon him) said, your mother. the man asked, then who else? only then did the prophet (peace and blessings be upon him) say, your father. [al-bukhari and muslim]

a famous saying of the prophet (peace and blessings be upon him) is: "paradise is at the feet of mothers." [in an-nasa'i, ibn majah, ahmad]

"it is the generous (in character) who is good to women, and it is the wicked who insults them."