Messenger of Allah ﷺ regarded illegal the price of a dog, the earnings of a prostitute, and the charges taken by a soothsayer.
عَنْ أَبِي مَسْعُودٍ الأَنْصَارِيِّ ؓ أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنْ ثَمَنِ الْكَلْبِ وَمَهْرِ الْبَغِيِّ وَحُلْوَانِ الْكَاهِنِ