The Messenger of Allah (sallallahu alayhi wa sallam) said, “Reviling a Muslim is Fusuq (disobedience of Allah) and killing him is (tantamount to) disbelief.”.
وعن ابن مسعود رضي الله عنه
قال: قال رسول الله صلى الله عليه وسلم: «سباب المسلم فسوق، وقتاله كفر»
The Messenger of Allah (sallallahu alayhi wa sallam) said, “Reviling a Muslim is Fusuq (disobedience of Allah) and killing him is (tantamount to) disbelief.”.
Who passed it on, from Imam an-Nawawi back to the one who was there.
The same words, in another collection.
Riyad as-Salihin 1559 and the rest of the library, offline, with Bengali, Urdu, Indonesian or Turkish under the English.
Seventeen collections, the whole Qur'an and Identify, free in the app.