Jami` at-Tirmidhi 1918
جامع الترمذي#1918SahihSahl bin Sa'd narrated that:the Messenger of Allah said: " I and the sponsor of an orphan shall be in Paradise like these two."And he indicaed with his fingers, meaning his index and his middle finger
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 Bukhari
In-book reference: 27:24