[Machine] On the authority of Abu Said al-Khudri: "There should be no harm or reciprocating harm." This is a good Hadith narrated by Ibn Majah, Ad-Daraqutni, and others, with a connected chain of narrators. Malik also narrated it in "Al-Muwatta" from Amr ibn Yahya, from his father, as a sent message, omitting the attribution to Abu Said. And there are variations of its chain that strengthen each other.

عَنْ أبِي سَعِيدٍ الخُدْرِيِّ: «لا ضَرَرَ ولا ضِرارَ» حَدِيثٌ حَسَنٌ رَواهُ ابْنُ ماجَهْ والدّارَقُطْنِيُّ وغَيْرُهُما مُسْنَدًا ورَواهُ مالِكٌ فِي «المُوَطَّإ» عَنْ عَمْرِو بْنِ يَحْيى عَنْ أبِيهِ مُرْسَلًا فَأسْقَطَ أبا سَعِيدٍ ولَهُ طُرُقٌ يَقْوى بَعْضُها بِبَعْضٍ