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  

A hadith like this is reported on the authority of Abu Mas'ud through another chain of transmitters.  

أَنَّهُ سَمِعَ أَبَا مَسْعُودٍ  

I heard Allah's Apostle ﷺ as saying: The worst earning is the earning of a prostitute, the price of a dog and the earning of a cupper.  

سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ شَرُّ الْكَسْبِ مَهْرُ الْبَغِيِّ وَثَمَنُ الْكَلْبِ وَكَسْبُ الْحَجَّامِ  

The price of a dog is evil, the earning of a prostitute is evil and the earning of a cupper is evil.  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ ثَمَنُ الْكَلْبِ خَبِيثٌ وَمَهْرُ الْبَغِيِّ خَبِيثٌ وَكَسْبُ الْحَجَّامِ خَبِيثٌ  

A hadith like this has been narrated on the authority of Rafi' b. Khadij through another chain of transmitters.  

عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ بِهَذَا الإِسْنَادِ مِثْلَهُ  

A hadith like this has been narrated on the authority of Rafi' b. Khadij through another chain of transmitters.  

عَنْ رَسُولِ اللَّهِ ﷺ بِمِثْلِهِ  

I asked Jabir about the price of a dog and a cat; he said: Messenger of Allah ﷺ disapproved of that.  

زَجَرَ النَّبِيُّ ﷺ عَنْ ذَلِكَ