Jami` at-Tirmidhi 362
جامع الترمذي#362SahihAishah narrated:"Allah's Messenger performed Salat behind Abu Bakr, during the illness from which he died, and he was sitting
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 ZaiIsnaad Sahih
In-book reference: 2:214