Placing used handkerchiefs in the mosque and between the mushafs

Question:
The questioner says: Shaykh, we observe that some of the worshippers, may Allah guide them, after using a handkerchief, place it under the benches or the pillar, or place the used handkerchief in the drawer of the mushaf. Does the Shaykh have a word to say?

Answer:
This is haram (forbidden) and not permissible. It is not permissible to throw handkerchiefs containing waste in the mosque. The mosque must be preserved, cleaned, and purified, and no waste should be thrown in it, because it is one of the houses of Allah the Exalted. So it should not be placed in the box of the mushafs. This is even more severe: placing handkerchiefs that contain harm with the mushafs. And one should not place them under the carpet, the carpet of the mosque, for this is a sin.
The Prophet (peace and blessings be upon him) said: This is not permissible; it is a form of mistreatment of the mosques. If one needs a handkerchief, whether his own or one from the mosque, he should use it to wipe what bothers him and place it in the receptacles provided in the corners or on the sides. When he leaves, he should throw it in the street, not in the mosque. Yes.