(40) باب فِي الْغِيبَةِ
Narrated Sa'id ibn Zayd:
The Prophet (ﷺ) said: The most prevalent kind of usury is going to lengths in talking unjustly against a Muslim's honour. (ID)
Reference (ID): Sunan Abi Dawud 4876 (ID)
In-book reference (ID): Book 43, Hadith 104 (ID)
English translation (ID): Book 42, Hadith 4858 (ID)