Shaykh Uthaymeen said, “All celebrations which differ from the Eids prescribed in Islam are innovated festivals which were not known at the time of the righteous salaf, and may also have come from the non-Muslims, in which case as well as being an innovation (bidah) they are also an imitation of the enemies of Allaah. The festivals which are prescribed in Islam are well known to the Muslims: they are Eid al-Fitr and Eid al-Adha, and the weekly “Eid” of Jumu’ah. There is no other festival in Islam apart from these three. All the festivals that have been invented apart from these are to be rejected because they are innovations and are false according to the laws of Allaah, because the Prophet (peace and blessings of Allaah be upon him) said: “Whoever introduces anything into this matter of ours that is not part of it will have it rejected,” i.e., it will be thrown back at him and will not be accepted by Allaah. According to another version: “Whoever does any deed that is not part of this matter of ours will have it rejected.”
Once this is clear, then it is not permissible to show any of the signs of festivity on the celebration mentioned in the question, namely Mother’s Day. It is not permissible to show joy and happiness, or to offer gifts, and so on.
The Muslim should feel proud of his religion and adhere to the limits set by Allaah and His Messenger (peace and blessings of Allaah be upon him) in this religion, which Allaah has chosen for His slaves, and he should not add anything or take anything away. What the Muslim should also do is to not to follow every new idea that comes along, rather his character should be in accordance with the sharee’ah of Allaah so that he will be a leader and example, not a follower, because the sharee’ah of Allaah – praise be to Allaah – is complete in all ways as Allaah says:
“This day, I have perfected your religion for you, completed My Favour upon you, and have chosen for you Islam as your religion” [al-Maa’idah 5:3]
A mother’s right is greater than having just one day in the year to be honoured, rather the mother’s right over her children is that they should take care of her and obey her, so long as it does not involve disobedience towards Allaah, at all times and in all places.”
Ref: Majmoo Fataawa al-Shaykh Ibn ‘Uthaymeen, 2/301
Posted by Abdul Kareem Ibn Ozzie