Sunan Abi Dawud 5036
سنن أبي داود#5036Da'ifNarrated Ubayd ibn Rifa'ah az-Zuraqi: The Prophet (ﷺ) said: Invoke a blessing on one who sneezes three times; (and if he sneezes more often), then if you wish to invoke a blessing on him, you may invoke, and if you wish (to stop), then stop
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Muhyi Al-Din Abdul HamidDaif
Zubair Ali ZaiDaif
In-book reference: 43:264