It has been reported that Abu 'Abd Allah (a.s) said
If one belittles a destitute believer, Allah [M.G] will not cease scorning and loathing him until he makes up for his looking down on the believer.
182 - وعن أبي عبد الله عليه السلام
أنه قال: من حقر مؤمنا فقيرا لم يزل الله عز وجل له حاقرا ماقتا حتى يرجع عن محقرته إياه.
Similar narrations
Kitāb al-Muʾmin #181Do not belittle your brother-in-faith lest Allah [M.G] should show mercy to him while you are belittling him and your circumstances should...