Mishkat al-Masabih 1147
‘Ubaidallah b. ‘Abdallah said he visited ‘A’isha and asked her to tell him about the illness of God’s Messenger. She agreed and said:
The Prophet was seriously ill, and he asked whether the people had prayed. When I told him that they had not, but were waiting for him, he asked me to put some water for him in the tub, and I did so. He bathed, and when he was about to rise with difficulty he fainted. When he came round he asked if the people had prayed, and when I told him that they had not, but were waiting for him, he told me to put some water for him in the tub and sat down and bathed, but when he was about to rise with difficulty he fainted. On coming round he asked whether the people had prayed, and when I told him they had not, but were waiting for him, he asked me to put some water for him in the tub and sat down and bathed, but when he was about to rise with difficulty he fainted. When he came round he asked whether the people had prayed and I told him they had not, but were waiting for him. The people were staying in the mosque waiting for the Prophet for the last evening prayer, so the Prophet sent instructions to Abu Bakr to lead the people in the prayer. When the Messenger came to him and told him God’s Messenger was ordering him to lead the people in the prayer, Abu Bakr, who was a sensitive man, told ‘Umar to lead the people, but when ‘Umar replied, “You are more entitled to that,” Abu Bakr led the prayers during those days. Afterwards the Prophet experienced some improvement in his condition and went out between two men, one of whom was al-‘Abbas, to the noon prayer when Abu Bakr was leading the people. When Abu Bakr saw him he began to withdraw, but the Prophet signed to him not to do so. He told his two companions to set him down beside Abu Bakr, and they did so and he remained seated. ‘Ubaidallah said that he visited ‘Abdallah b. ‘Abbas and asked if he might submit to him what ‘A’isha had told him about the illness of God’s Messenger, and he said, “Go ahead.” He submitted to him what she had told and he objected to none of it, only asking whether she had named to him the man who accompanied al- ‘Abbas. When he replied that she had not, he said that he was ‘Ali. 

(Bukhari and Muslim.)
عَن عبيد الله بن عبد الله بن عتبَة قَالَ: دَخَلْتُ عَلَى عَائِشَةَ فَقُلْتُ أَلَا تُحَدِّثِينِي عَنْ مَرَضِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَتْ بَلَى ثَقُلَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسلم فَقَالَ: «أصلى النَّاس؟» قُلْنَا لَا يَا رَسُولَ اللَّهِ وَهُمْ يَنْتَظِرُونَكَ فَقَالَ: «ضَعُوا لِي مَاءً فِي الْمِخْضَبِ» قَالَتْ فَفَعَلْنَا فَاغْتَسَلَ فَذَهَبَ لِيَنُوءَ فَأُغْمِيَ عَلَيْهِ ثُمَّ أَفَاقَ فَقَالَ صلى الله عَلَيْهِ وَسلم: «أَصَلَّى النَّاسُ؟» قُلْنَا لَا هُمْ يَنْتَظِرُونَكَ يَا رَسُولَ اللَّهِ قَالَ: «ضَعُوا لِي مَاءً فِي الْمِخْضَبِ» قَالَتْ فَقَعَدَ فَاغْتَسَلَ ثُمَّ ذَهَبَ لِيَنُوءَ فَأُغْمِيَ عَلَيْهِ ثُمَّ أَفَاقَ فَقَالَ: «أَصَلَّى النَّاسُ؟» قُلْنَا لَا هُمْ يَنْتَظِرُونَكَ يَا رَسُولَ اللَّهِ فَقَالَ: «ضَعُوا لِي مَاءً فِي الْمِخْضَبِ» فَقَعَدَ فَاغْتَسَلَ ثُمَّ ذَهَبَ لِيَنُوءَ فَأُغْمِيَ عَلَيْهِ ثُمَّ أَفَاقَ فَقَالَ: «أَصَلَّى النَّاسُ» . قُلْنَا لَا هُمْ يَنْتَظِرُونَكَ يَا رَسُولَ اللَّهِ وَالنَّاسُ عُكُوفٌ فِي الْمَسْجِدِ يَنْتَظِرُونَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لِصَلَاةِ الْعِشَاءِ الْآخِرَةِ. فَأَرْسَلَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِلَى أَبِي بَكْرٍ بِأَنْ يُصَلِّيَ بِالنَّاسِ فَأَتَاهُ الرَّسُولُ فَقَالَ إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَأْمُرُكَ أَنْ تُصَلِّيَ بِالنَّاسِ فَقَالَ أَبُو بَكْرٍ وَكَانَ رَجُلًا رَقِيقًا يَا عُمَرُ صَلِّ بِالنَّاسِ فَقَالَ لَهُ عُمَرُ أَنْتَ أَحَقُّ بِذَلِكَ فَصَلَّى أَبُو بَكْرٍ تِلْكَ الْأَيَّامَ ثُمَّ إِنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وجد من نَفْسِهِ خِفَّةً وَخَرَجَ بَيْنَ رَجُلَيْنِ أَحَدُهُمَا الْعَبَّاسُ لِصَلَاةِ الظُّهْرِ وَأَبُو بَكْرٍ يُصَلِّي بِالنَّاسِ فَلَمَّا رَآهُ أَبُو بَكْرٍ ذَهَبَ لِيَتَأَخَّرَ فَأَوْمَأَ إِلَيْهِ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِأَنْ لَا يَتَأَخَّرَ قَالَ: «أَجْلِسَانِي إِلَى جَنْبِهِ» فَأَجْلَسَاهُ إِلَى جَنْبِ أَبِي بَكْرٍ وَالنَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسلم قَاعد. قَالَ عُبَيْدُ اللَّهِ: فَدَخَلْتُ عَلَى عَبْدِ اللَّهِ بْنِ عَبَّاسٍ فَقُلْتُ لَهُ أَلَا أَعْرِضُ عَلَيْكَ مَا حَدَّثتنِي بِهِ عَائِشَةُ عَنْ مَرَضِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ؟ قَالَ هَاتِ فَعَرَضْتُ عَلَيْهِ حَدِيثَهَا فَمَا أَنْكَرَ مِنْهُ شَيْئًا غَيْرَ أَنَّهُ قَالَ أَسَمَّتْ لَكَ الرَّجُلَ الَّذِي كَانَ مَعَ الْعَبَّاسِ قلت لَا قَالَ هُوَ عَليّ رَضِي الله عَنهُ