The Book of the Believer · Hadith 144 (#Ḥadīth #38)
Chapter 5 | The Reward of Helping a Believer, Relieving Him of Distress And Showing Him Kindness
144- وعن أبي عبد الله عليه السلام قال: إن المسلم إذا جاءه أخوه المسلم فقام معه في حاجته، كان كالمجاهد في سبيل الله
144. It has been reported that Abu 'Abd Allah said: A believer who rises to assist another believer when he comes to him for help is like one who strives in the way of Allah.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).