Sunan Abi Dawud 4689
سنن أبي داود#4689SahihAbu Hurairah reported the Messenger of Allah (May peace be upon him) as saying :When one commits fornication, one is not a believer ; when one steals, one is not a believer ; when one drinks, one is not a believer ; and repentance is placed before him
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
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (6810) Sahih Muslim (57)
In-book reference: 42:94