Jami` at-Tirmidhi 1060
جامع الترمذي#1060SahihAbu Hurairah narrated that:The Messenger of Allah said: "Any Muslim who has lost three of his children will not be touched by the Fire, except for what will fulfill the oath
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 10:96