Sunan Ibn Majah #2340
Sahih (Authentic)
Trade
لاَ ضَرَرَ وَلاَ ضِرَارَ
The Messenger of Allah (ﷺ) said: 'There should be neither harming nor reciprocating harm.'
Chain of Narration (Isnad)
Narrated Abu Sa'id al-Khudri