Sunan Abi Dawud 4758
سنن أبي داود#4758SahihNarrated AbuDharr: The Prophet (ﷺ) said: He who separates from the community within a span takes off the noose of Islam from his neck
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 ZaiIsnaad Hasan
In-book reference: 42:163