Why did ‘Umar (may Allah be pleased with him) call uniting the people in praying Taraweeh behind one imam an innovation (bid‘ah)?

Remembering Allah by saying “Subhaan al-Malik al-Quddoos (Glory be to the Sovereign, the Most Holy)” following Witr prayer and not between the rak‘ahs of Taraweeh

Is it permissible to pray in a mosque where the ground floor is controlled by the Shi‘ah and the Sunnis control the upper floor?

Ruling on repeating a specific dhikr at a specific time

Is It Sunnah to Recite Al-Fatihah at Engagement?

Ruling on celebrating the birthday of the Messenger (blessings and peace of Allah be upon him) without any singing or other haram things

Celebrating the Mawlid is a legitimate act of worship according to those who regard it as mustahabb

The bid‘ah (innovation) of encouraging billions of salawaat upon the Messenger of Allah on the occasion of the Mawlid (Prophet’s Birthday)

How should he deal with his family who celebrate the Prophet’s birthday (Mawlid) and make comments about him because he does not join them?

Celebrations in Islam: What is Permissible and What Is Not?