Hadith 7:171
Narrated [Ibn 'Abbas (RA)]:
Allah's Messenger (ﷺ) said: "There should neither be harming (of others without cause), nor reciprocating harm (between two parties)." [Reported by Ahmad and Ibn Majah].
وَعَنْ اِبْنِ عَبَّاسٍ -رَضِيَ اَللَّهُ عَنْهُمَا- قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ لَا ضَرَرَ وَلَا ضِرَارَ } رَوَاهُ أَحْمَدُ, وَابْنُ مَاجَهْ