Dalil

Quran Al-Qalam 68:46

أَمۡ تَسۡـَٔلُهُمۡ أَجۡرٗا فَهُم مِّن مَّغۡرَمٖ مُّثۡقَلُونَ

Translation

Or do you ask of them a payment, so they are by debt burdened down?