Sunan Abi Dawud 694
سنن أبي داود#694HasanNarrated Abdullah ibn Abbas: The Prophet (ﷺ) said: Do not pray behind a sleeping or a talking person
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan
Muhammad Muhyi Al-Din Abdul HamidHasan
Zubair Ali ZaiHasan
In-book reference: 2:304