Abu Hurairah (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings of Allah be upon him) forbade the price of a dog, except for the price of a hunting dog. Imam Tirmidhi says:
1- This hadith is not authentic through this chain,
2- Abu Muhazim's name is Yazid bin Sufyan; Shu’bah bin Hajjaj has spoken about him and has declared him weak,
3- And it is narrated from Jabir that he narrated a similar hadith from the Prophet (peace and blessings of Allah be upon him), and its chain is also not authentic (see Al-Saheehah, no. 2971).