The Prophet ﷺ forbade the price paid for a dog, the hire paid to prostitute, and the gift given to a soothsayer.  

عَنِ النَّبِيِّ ﷺ أَنَّهُ نَهَى عَنْ ثَمَنِ الْكَلْبِ وَمَهْرِ الْبَغِيِّ وَحُلْوَانِ الْكَاهِنِ  

The Messenger of Allah ﷺ forbade the price paid for a dog; if someone comes to ask for the price of a dog, fill his hand-palm with dust.  

نَهَى رَسُولُ اللَّهِ ﷺ عَنْ ثَمَنِ الْكَلْبِ وَإِنْ جَاءَ يَطْلُبُ ثَمَنَ الْكَلْبِ فَامْلأْ كَفَّهُ تُرَابًا  

The Messenger of Allah ﷺforbade the price paid for a dog.  

إِنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنْ ثَمَنِ الْكَلْبِ  

The Prophet ﷺ said: The price paid for a dog, the price given to a soothsayer, and the hire paid to a prostitute are not lawful.  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ يَحِلُّ ثَمَنُ الْكَلْبِ وَلاَ حُلْوَانُ الْكَاهِنِ وَلاَ مَهْرُ الْبَغِيِّ