What Allah عز وجل has Forbidden a Believer to do Against a Fellow Believer

Kitāb al-Muʾmin|Volume 1|Book 1|Chapter 8
Kitāb al-Muʾmin

Book 1, Chapter 8

What Allah عز وجل has Forbidden a Believer to do Against a Fellow Believer

179 - وعن أبي عبد الله عليه السلام قال: أيما مؤمن سأل أخاه المؤمن حاجة، وهو يقدر على قضائها، فرده بها، سلط الله عليه شجاعا في قبره ينهش أصابعه.
179. It has been reported that Abu 'Abd Allah عليه السلام said: If any believer asks a fellow believer for help but the other refuses though he is able to do, Allah will impose a serpent in his grave biting his fingers.