03-18-2012, 02:29 PM
Celebrating Mother’s Day is an innovated matter which the Prophet (peace and blessings of Allaah be upon him) and his companions (may Allaah be pleased with them) did not do. It is also an imitation of the kuffaar from whom we have been commanded to differ. Hence it is not permissible to celebrate it or to obey one's mother in that, because the Prophet (peace and blessings of Allaah be upon him) said: “There is no obedience if it involves sin; obedience is only in that which is right and proper.” Narrated by al-Bukhaari, 7257; Muslim, 1840.
http://islamqa.info/en/ref/59905