Hadith 4

Bulugh al-Maram

Book 7: Business Transactions
وَعَنْ أَبِي مَسْعُودٍ ‏- رضى الله عنه ‏- { أَنَّ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-نَهَى عَنْ ثَمَنِ اَلْكَلْبِ, وَمَهْرِ الْبَغِيِّ, وَحُلْوَانِ اَلْكَاهِنِ } مُتَّفَقٌ عَلَيْهِ 1‏ .‏
Abu Mas'ud al-Ansari (RA):

Allah's Messenger (ﷺ) prohibited the money paid for a dog, the payment of a prostitute, and the payment given to a soothsayer." [Agreed upon].