ABU BAKR IS INSTRUCTED TO LEAD THE PRAYER H 454 "When the illness of the Prophet, praise and peace be upon him, became severe he was asked about the prayer so he said: 'Tell Abu Bakr to lead the prayer.' Lady Ayesha, may Allah be pleased with her, overheard this and said: 'Abu Bakr is very tender-hearted, he is sure to be overcome when he recites the Koran.' The Prophet, praise and peace be upon him, repeated: 'Tell him to lead the prayer.'" We are also informed: "When Abu Bakr stands (to pray) in your place people will not be able to hear him because of his weeping." R 454 Bukhari and Muslim with a chain up to ibn Omar who related that Lady Ayesha, may Allah be pleased with her, said this.
453- وعن ابن عمر رضي الله عنهما ، قَالَ : لَمَّا اشْتَدَّ برسول الله صلى الله عليه وآله وسلم وَجَعُهُ ، قِيلَ له في الصَّلاَةِ ، فقال : "مُرُوا أَبَا بَكْرٍ فَلْيُصَلِّ بِالنَّاسِ" فقالت عائشة رضي الله عنها : إنَّ أَبَا بَكْرٍ رَجُلٌ رَقِيقٌ ، إِذَا قَرَأَ القُرْآنَ غَلَبَهُ البُكَاءُ ، فقال : "مُرُوهُ فَليُصَلِّ" . وفي رواية عن عائشة ، رضي الله عنها ، قالت : قلت : إنَّ أَبَا بَكْرٍ إِذَا قَامَ مَقَامَكَ لَمْ يُسْمِعِ النَّاسَ مِنَ البُكَاءِ . متفقٌ عَلَيْهِ .