It is narrated from Aisha (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) ordered Abu Bakr (may Allah be pleased with him) to lead the people in prayer. When the Prophet (peace and blessings be upon him) felt better, he came and sat down beside Abu Bakr (may Allah be pleased with him). The Messenger of Allah (peace and blessings be upon him) led Abu Bakr (may Allah be pleased with him) in prayer while he was sitting, and Abu Bakr (may Allah be pleased with him) led the people in prayer while standing.
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 310
Hadith Takhrijاخرجہ البخاری، الاذان، باب من قام الی جنب الامام لعلة: 683، ومسلم، الصلاة، باب استخلاف الامام اذا عرض لہ عذر من مرض وسفر وغيرهما .... الخ 418۔
Ubaid bin Umair Al-Laithi narrates that the Messenger of Allah ﷺ ordered Abu Bakr (may Allah be pleased with him) to lead the people in the morning prayer, and Abu Bakr (may Allah be pleased with him) pronounced the takbeer. The Prophet ﷺ felt some relief, stood up, and came forward past the rows. Ubaid says that when Abu Bakr (may Allah be pleased with him) led the prayer, he would not turn to any side. When Abu Bakr (may Allah be pleased with him) sensed something behind him and realized that no one except the Messenger of Allah ﷺ could come to that place, he stepped back towards the row, but the Messenger of Allah ﷺ returned him to his place. The Messenger of Allah ﷺ sat beside him, and Abu Bakr (may Allah be pleased with him) remained standing, until when Abu Bakr (may Allah be pleased with him) finished the prayer, he said: O Messenger of Allah ﷺ! I thought you had recovered, and this day belonged to the daughter of Kharijah. Abu Bakr (may Allah be pleased with him) returned to his house, and the Messenger of Allah ﷺ sat in his place at one side of the chamber, warning the people against tribulations. He ﷺ said: "People should not follow my example in every matter, for I declare lawful what Allah has made lawful in His Book, and I declare unlawful what Allah has made unlawful in His Book. O Fatimah! Daughter of the Messenger of Allah ﷺ, O Safiyyah! Aunt of the Messenger of Allah ﷺ, act for what is with Allah, for surely I cannot avail you anything against Allah."
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 311
Hadith Takhrijاسنادہ ضعیف لارسالہ: اخرجہ البيهقي فی معرفة السنن والآثار : 1079، وابن سعد فی الطبقات: 2/215۔
It is narrated from Aisha (may Allah be pleased with her) that when the Messenger of Allah (peace and blessings be upon him) was ill, he ordered Abu Bakr (may Allah be pleased with him) to lead the people in prayer. When the Prophet (peace and blessings be upon him) felt some relief, he came (to the mosque) and sat beside Abu Bakr (may Allah be pleased with him). The Messenger of Allah (peace and blessings be upon him) led Abu Bakr (may Allah be pleased with him) in prayer while sitting, and Abu Bakr (may Allah be pleased with him) led the people in prayer while standing.
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 312
Hadith Takhrijاخرجہ البخاری، الاذان، باب من قام الی جنب الامام لعلة: 683، ومسلم، الصلاة، باب استخلاف الامام اذا عرض لہ عذر من مرض وسفر وغيرهما .... الخ 418۔
It is narrated from Ubaid bin Umair (may Allah have mercy on him) through another chain, who reports from the Prophet Muhammad (peace be upon him) in the same meaning without any difference.
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 313
Hadith Takhrijاسنادہ ضعیف لارسالہ: اخرجہ البيهقي فی معرفة السنن والآثار : 1079، وابن سعد فی الطبقات: 2/215۔
It is narrated from Aisha (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) came out during his illness and went to Abu Bakr (may Allah be pleased with him) while he was standing and leading the people in prayer. Abu Bakr (may Allah be pleased with him) began to step back, but the Messenger of Allah (peace and blessings be upon him) signaled to him to remain as he was standing. Then the Messenger of Allah (peace and blessings be upon him) sat down beside Abu Bakr (may Allah be pleased with him). Abu Bakr (may Allah be pleased with him) was following the Prophet (peace and blessings be upon him), while the people were following Abu Bakr (may Allah be pleased with him).
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 314
Hadith Takhrijاخرجہ البخاری، الاذان، باب من قام الی جنب الامام لعلة: 683، ومسلم، الصلاة، باب استخلاف الامام اذا عرض لہ عذر من مرض وسفر وغيرهما .... الخ 418۔
Urwah (may Allah have mercy on him) narrated from Aisha (may Allah be pleased with her) a hadith with the same meaning, which does not differ from it and is even clearer, and said: Abu Bakr (may Allah be pleased with him) stood by the side of the Prophet ﷺ and performed the prayer.
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 315
Hadith Takhrijاخرجہ البخاری، الاذان، باب من قام الی جنب الامام لعلة: 683، ومسلم، الصلاة، باب استخلاف الامام اذا عرض لہ عذر من مرض وسفر وغيرهما .... الخ 418۔
It is narrated from Ubaid bin Umair, may Allah have mercy on him, who states: A trustworthy person informed me (as if he meant Aisha, may Allah be pleased with her). Then he mentioned the prayer of the Prophet ﷺ and that Abu Bakr, may Allah be pleased with him, was at his side, similar to the narration of Hisham bin Urwah from his father.
Hadith Referenceمسند الإمام الشافعي / كتاب الصلاة / 316
Hadith Takhrijصحیح من غیر ہذا الطریق کما تقدم، اخرجہ البئیقی فی معرفة السنن والآثار: 1465