Sunan Abi Dawud 3229
سنن أبي داود#3229SahihNarrated Abu Marthad al-Ghanawi :The Messenger of Allah (ﷺ) as saying: Do not sit on the graves, and do not pray facing them
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 Muslim (972)
In-book reference: 21:141