There are things that are impermissible for the one fasting [to do] even though they do not nullify his fast. They are called “Mufattiraat Ma’nawiyyah” (figurative nullifiers).
Category: Fiqh
Praying Behind an innovator or sinful person
So this Imaam, if he were to fall into an innovation or a sin that does not amount up to disbelief, then surely, prayer behind him is considered to be correct and permissible.
Praying in the Masaajid of Ahl al-Bid’ah
Important guidelines in praying and teaching in the mosques of the people of innovation.
Washing the hands before the face during Wudhoo
What if somebody forgets to wash his face and did not remember this until he finished the Wudhoo?