Language:
كتاب الكسوف
16  
Eclipses
(8)
Chapter: To prolong the prostrations in the eclipse Salat
(8)
باب طُولِ السُّجُودِ فِي الْكُسُوفِ
Sahih al-Bukhari 1051

Narrated `Abdullah bin `Amr:

When the sun eclipsed in the lifetime of Allah's Messenger (ﷺ) and an announcement was made that the prayer was to be held in congregation. The Prophet (ﷺ) performed two bowing in one rak`a. Then he stood up and performed two bowing in one rak`a. Then he sat down and finished the prayer; and by then the (eclipse) had cleared `Aisha said, "I had never performed such a long prostration."

حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ حَدَّثَنَا شَيْبَانُ، عَنْ يَحْيَى، عَنْ أَبِي سَلَمَةَ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، أَنَّهُ قَالَ لَمَّا كَسَفَتِ الشَّمْسُ عَلَى عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم نُودِيَ إِنَّ الصَّلاَةَ جَامِعَةٌ فَرَكَعَ النَّبِيُّ صلى الله عليه وسلم رَكْعَتَيْنِ فِي سَجْدَةٍ ثُمَّ قَامَ فَرَكَعَ رَكْعَتَيْنِ فِي سَجْدَةٍ، ثُمَّ جَلَسَ، ثُمَّ جُلِّيَ عَنِ الشَّمْسِ‏.‏ قَالَ وَقَالَتْ عَائِشَةُ ـ رضى الله عنها ـ مَا سَجَدْتُ سُجُودًا قَطُّ كَانَ أَطْوَلَ مِنْهَا‏.‏
Reference : Sahih al-Bukhari 1051
In-book reference : Book 16, Hadith 11
USC-MSA web (English) reference : Vol. 2, Book 18, Hadith 160
  (deprecated numbering scheme)