On the authority of Abu Saâeed al-Khudree (r), that the Messenger of Allah (s) said:
There should be neither harming (darar) nor reciprocating harm (dirar). A hasan hadeeth related by Ibn Majah, ad-Daraqutnee and others as a musnad hadeeth. It was also related by Malik in al-Muwatta in mursal form from Amr bin Yahya, from his father from the Prophet (s), but leaving Abu Saâeed from the chain. And it has other chains of narrations that strengthen one another.