Language:
كتاب الأذان
10  
Call to Prayers (Adhaan)
(39)
Chapter: The limit set for a patient to attend the congregational Salat (prayer)?
(39)
باب حَدِّ الْمَرِيضِ أَنْ يَشْهَدَ الْجَمَاعَةَ
Sahih al-Bukhari 665

Narrated `Aisha:

"When the Prophet (ﷺ) became seriously ill and his disease became aggravated he asked for permission from his wives to be nursed in my house and he was allowed. He came out with the help of two men and his legs were dragging on the ground. He was between Al-`Abbas and another man." 'Ubaidullah said, "I told Ibn `Abbas what `Aisha had narrated and he said, 'Do you know who was the (second) man whose name `Aisha did not mention'" I said, 'No.' Ibn `Abbas said, 'He was `Ali Ibn Abi Talib.' "

حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُوسَى، قَالَ أَخْبَرَنَا هِشَامُ بْنُ يُوسُفَ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي عُبَيْدُ اللَّهِ بْنُ عَبْدِ اللَّهِ، قَالَ قَالَتْ عَائِشَةُ لَمَّا ثَقُلَ النَّبِيُّ صلى الله عليه وسلم وَاشْتَدَّ وَجَعُهُ اسْتَأْذَنَ أَزْوَاجَهُ أَنْ يُمَرَّضَ فِي بَيْتِي فَأَذِنَّ لَهُ، فَخَرَجَ بَيْنَ رَجُلَيْنِ تَخُطُّ رِجْلاَهُ الأَرْضَ، وَكَانَ بَيْنَ الْعَبَّاسِ وَرَجُلٍ آخَرَ‏.‏ قَالَ عُبَيْدُ اللَّهِ فَذَكَرْتُ ذَلِكَ لاِبْنِ عَبَّاسٍ مَا قَالَتْ عَائِشَةُ فَقَالَ لِي وَهَلْ تَدْرِي مَنِ الرَّجُلُ الَّذِي لَمْ تُسَمِّ عَائِشَةُ قُلْتُ لاَ‏.‏ قَالَ هُوَ عَلِيُّ بْنُ أَبِي طَالِبٍ‏.‏
Reference : Sahih al-Bukhari 665
In-book reference : Book 10, Hadith 59
USC-MSA web (English) reference : Vol. 1, Book 11, Hadith 634
  (deprecated numbering scheme)