Yaseen - 36:21
Follow those who do not charge you anything. They are on the right path.
What is the intention?
The Arabic Letter Sad/38:86
"Say, "I do not ask you for a wage in return for this; I am not an impostor."
The Pen/68:46
Or do you ask them for a wage and they are burdened with a heavy debt?
The Repentance/9:34
O you who believe, most of the scribes and religious leaders eat the people´s money without right and lead them astray from the way of Allah. Give glad tidings of a painful torment to those who hoard gold and silver and spend it not in the way of Allah.