The Book of Musaqah
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنِ ابْنِ شِهَابٍ، عَنْ أَبِي بَكْرِ بْنِ، عَبْدِ الرَّحْمَنِ عَنْ أَبِي مَسْعُودٍ الأَنْصَارِيِّ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنْ ثَمَنِ الْكَلْبِ وَمَهْرِ الْبَغِيِّ وَحُلْوَانِ الْكَاهِنِ " .Aba Mas'ud al-Ansari (Allah be pleased with him) reported that Allah's Messenger (ﷺ) forbade the charging of price of the dog, and earnings of a prostitute and sweets offered to a kahin
From Sahih Muslim, whose reports the scholars accept as authentic.