(64) باب إِمَامَةِ الْبَرِّ وَالْفَاجِرِ
Abu Hurairah reported the Messenger of Allah(ﷺ) as saying:
The obligatory prayer is essential behind every Muslim, pious or impious, even if he has committed a sins. (IT)
Reference (IT): Sunan Abi Dawud 594 (IT)
In-book reference (IT): Book 2, Hadith 204 (IT)
English translation (IT): Book 2, Hadith 594 (IT)