Peace, mercy, and blessings of God be upon you. Brothers, I see many advertisements saying the commission is on the buyer, and this is wrong. The commission is the responsibility of the advertiser, and I swear by that when posting the advertisement, and the electronic oath is a valid legal oath. Your advertisement is not published unless you accept the condition. And if you stipulate that the commission is on the buyer and think that you are absolved by the condition, then you are mistaken. The commission is your responsibility, so fear God. The amount is very small, and do not burden yourselves with a sin for something worthless. God is the source of all intention. It is advice, accept it or reject it, you are free.