Aba Mas'ud al-Ansari (Allah be pleased with him) reported that Messenger of Allah ﷺ forbade the charging of price of the dog, and earnings of a prostitute and sweets offered to a kahin.
أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنْ ثَمَنِ الْكَلْبِ وَمَهْرِ الْبَغِيِّ وَحُلْوَانِ الْكَاهِنِ