Sunan Abi Dawud 3421
سنن أبي داود#3421SahihNarrated Rafi' ibn Khadij: The Prophet (ﷺ) said: The earnings of a cupper are impure, the price paid for a dog is impure, and the hire paid to a prostitute is impure
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Muslim (1568)
In-book reference: 24:6