Sunan an-Nasa'i 1877
سنن النسائي#1877SahihIt was narrated that Abu Hurairah said:"A woman came to the Messenger of Allah with a son of hers who was ill and said: 'O Messenger of Allah, I fear for him, and I have already lost three.' The Messenger of Allah said: "You have a great protection against the Hellfire
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 21:60