Hadith 1369
It is narrated from Sayyiduna Abu Mas'ud Ansari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) forbade taking the price of a dog, the earnings of a prostitute, and the earnings of a soothsayer.
Imam Malik (may Allah have mercy on him) said: In my view, the price of every dog is disliked, whether it is a hunting dog or not, because the Messenger of Allah (peace and blessings be upon him) has absolutely forbidden the price of a dog.