Jami` at-Tirmidhi 3667
جامع الترمذي#3667SahihNarrated Abu Sa'eed Al-Khudri:that Abu Bakr said: "Am I not the most deserving of it among the people, am I not the first to become Muslim, am I not the person of such and such, am I not the person of such and such
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
Zubair Ali ZaiIsnaad Sahih
In-book reference: 49:63