Sahih al-Bukhari, Book 19, Hadith 4 (In-Book) ⓘ
Narrated Jundab: The Prophet became sick and did not get up (for Tahajjud prayer) for a night or two.
حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ الأَسْوَدِ، قَالَ سَمِعْتُ جُنْدَبًا، يَقُولُ اشْتَكَى النَّبِيُّ صلى الله عليه وسلم فَلَمْ يَقُمْ لَيْلَةً أَوْ لَيْلَتَيْنِ.
also referenced under: Hadith 1124 (DarusSalam) & Volume 2, Book 21, Hadith 224 (USC-MSA)