What is the ruling on hanging dhikr (remembrance of Allah) in the mosques?

Question:
May Allah reward you, Honorable Shaykh. This is a question that has been asked repeatedly. One of them says: Signs have become widespread in the mosques, hung on the walls in front of the worshippers, with the dhikr after prayer written on them. What is the ruling on that? Knowing that some of them place them in the dome of the mosque or in its corners, on the right or on the left, or from the back?

Answer:
Innovations have multiplied in the mosques at the hands of religious young men, out of their own independent reasoning. Mosques are to be kept pure; nothing is to be hung in them, nothing is to be written in them, and nothing is to be placed in them that distracts the worshippers. If he wants to teach people the dhikr, he should teach them by having them memorize it and by instructing them in it. As for the paper, they do not pay attention to it and do not know about it. But if you teach your brother the dhikr and instruct him in it, that is what benefits him. Yes.