Abu Mas'ud al-Ansari said that God’s Messenger forbade the price paid for a dog, the hire paid to a prostitute, and the gift given to a soothsayer. (Bukhari and Muslim.)

وَعَنْ أَبِي مَسْعُودٍ الْأَنْصَارِيِّ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنْ ثَمَنِ الْكَلْبِ وَمَهْرِ الْبَغِيِّ وَحُلْوَانِ الْكَاهِنِ