Sunnis claim that the Holy Prophet (pbuh) appointed Abu Bakr to lead prayers during his illness. Is this statement accurate, and can you provide more details on the entire incident?
This claim is fabricated. The Prophet (SAWA) never appointed Abu Bakr to lead prayers during his illness, but Ayisha sent her father Abu Bakr to do that with out permission from the Prophet, and when the Prophet came to know what Ayisha did, he went to the Mosque tolerating his illness, supported by Ali and Al-Fadheelat ibn Abbas, and pulled Abu Bakr back from the Mihrab and lead the prayers himself.
Ibn Abi Al-Hadeed, the well known Sunni Mu'tazili scholar stated that he asked his teacher: Do you say that the Prophet never sent Abu Bakr to lead the Prayer but it was A'yisha who sent her father? He replied me: It is not my claim but Ali Ibn Abi Talib said it, and he was present and I was not present.
'Wassalam.