(1) باب
It was narrated that Abu Idris said:
"I heard Mu'awiyah delivering the Khutbah, and he narrated a few Hadiths from the Messenger of Allah [SAW]." He said: "I heard him delivering a Khutbah and he said: 'I heard the Messenger of Allah [SAW] say: Every sin may be forgiven by Allah except a man who kills a believer deliberately, or a man who dies as a disbeliever.'" (ES)
Reference (ES): Sunan an-Nasa'i 3984 (ES)
In-book reference (ES): Book 37, Hadith 19 (ES)
English translation (ES): Vol. 5, Book 37, Hadith 3989 (ES)