Praying behind followers of bid’ah, whether that bid’ah amounts to kufr or notNo File Exists
Check below answers in case you are looking for other related questions:
No File Exists
Should he pray behind someone whose ‘aqeedah is not known, whether there are Sufis and Shi’as in the country?
Recommended answers for you:
The difference between the mushrikeen and the kuffaar, and to which category do the Jews and Christians belong?