Sunan an-Nasa'i 1875
سنن النسائي#1875SahihIt was narrated from Abu Hurairah that the Messenger of Allah said:"No Muslim, three of whose children die, will be touched by the Fire, except in fulfillment of the (Divine) oath
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 - Agreed Upon
In-book reference: 21:58