The Ruling on Praying Tarawih in a Mosque Run by an Innovator

Question:
The questioner says: An imam in France, a Salafi, has been praying the tarawih prayer for three years in a mosque managed by the head of the innovators. Because of this, a fitnah (trial, discord or temptation) has arisen among some of the brothers who are asking the imam to stop the tarawih. Do you advise the imam to continue or to stop?

Answer:
My brothers, this is a fitnah (trial, discord or temptation). The mosque has tarawih and obligatory prayers being held in it, and praise be to Allah, and this is a righteous deed. Who established it as an innovator? And what do you know that he is an innovator, and what is the bid'ah (religious innovation)? Some people consider everything to be a bid'ah (religious innovation); whatever they do not know, they accuse of being a bid'ah (religious innovation). There is nothing wrong with the mosque. Pray in it, and the imam prays in it, and he prays the tarawih, and praise be to Allah. Yes.