“Show mercy to the creatures of God, and God will show mercy to you.”
— Jafar al-Sadiq[commonly attributed] Moral saying attributed to Ja'far in Shi'i and Sunni anthologies; not verified against a single early text

Commentary

This saying expresses a principle of reciprocal mercy that is common to many Islamic ethical traditions, grounded in the Prophetic emphasis on compassion. The reciprocity is moral rather than transactional: the one who shows mercy participates in the divine attribute of mercy, which the faithful are called to emulate. Marshall Hodgson, in The Venture of Islam (1974), describes the spread of such ethical maxims through the religious culture of the eighth century and their role in shaping communal life. Heinz Halm's study of the Imami tradition (1988) notes that the Imams' sayings on compassion were widely circulated in popular devotional settings. Hossein Modarressi's historical work (1993) warns that many moral sayings attributed to the Imams entered the collections later and were shaped by the concerns of their compilers. The saying is attributed to Ja'far, but its precise form is preserved in anthologies rather than in a single verified text.