Yahya related to me from Malik from Amr ibn Yahya al-Mazini fromhis father that the Messenger of Allah, may Allah bless him and granthim peace, said, "There is no injury nor return of injury." (IT)
USC-MSA web (English) reference: Book 36, Hadith 31 (IT)
Arabic reference (IT): Book 36, Hadith 1435 (IT)