Sahih Bukhari, Hadith: Q695, (56) Chapter. Offering prayers behind a man who is a victim of Al-Fitan (trials and afﬂictions) or a heretic.

صحيح البخاري

Sahih Bukhari

كتاب الأذان

The Book of Adhan

باب إمامة المفتون والمبتدع:

(56) Chapter. Offering prayers behind a man who is a victim of Al-Fitan (trials and afﬂictions) or a heretic.