791 – Ibn ʿAbbās (may Allah be pleased with him) reported that the Messenger of Allah (may Allah bless him and grant him peace) said: “There is to be no harming and no reciprocating harm.” Related by Aḥmad and Ibn Mājah (1).

A narration with the same wording also comes from Abū Saʿīd, and in the Muwaṭṭaʾ it is transmitted as a mursal report (2).

Hadith grading:
This ḥadith is ḥasan (sound).

• The report of Ibn ʿAbbās was recorded by Aḥmad, Ibn Mājah, Ibn Abī Shaybah, al-Ṭabarānī, and al-Dāraqutnī, with the chain revolving around ʿIkrimah from Ibn ʿAbbās.
• Aḥmad and Ibn Mājah also narrated it from Abū Saʿīd with the same wording; in the Muwaṭṭaʾ the isnād is mursal. Aḥmad, Ibn Mājah, and al-Bayhaqī transmitted it from ʿUbādah ibn al-Ṣāmit, though that chain is interrupted.
• Additional corroborating chains exist from Abū Hurayrah, Jābir, ʿĀʾishah, Thalabah al-Qurazī, and Abū Lubābah.

Thus the ḥadith is supported by multiple routes, and the only points of criticism concern continuity or disconnection in individual chains; taken together, the combined evidence renders it strong.

Imām al-Nawawī graded the ḥadith ḥasan in his Forty Hadith collection, as did al-Suyūṭī. Al-Haythamī said: “Its narrators are trustworthy.” Al-ʿAlāʾī stated: “With its corroborating chains, the ḥadith reaches the level of ṣaḥīḥ or ḥasan that is acceptable for legal proof.”