Sahih al-Bukhari, Hadith 431 ⓘ
Narrated `Abdullah bin `Abbas: The sun eclipsed and Allah's Messenger offered the eclipse prayer and said, "I have been shown the Hellfire (now) and I never saw a worse and horrible sight than the sight I have seen today."
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، قَالَ انْخَسَفَتِ الشَّمْسُ، فَصَلَّى رَسُولُ اللَّهِ صلى الله عليه وسلم ثُمَّ قَالَ " أُرِيتُ النَّارَ، فَلَمْ أَرَ مَنْظَرًا كَالْيَوْمِ قَطُّ أَفْظَعَ " .
also referenced under: Book 8, Hadith 81 (In-Book) & Volume 1, Book 8, Hadith 423 (USC-MSA)