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.
• Sahih al-Bukhari, 1124
• Sahih al-Bukhari, Vol. 2, Book of Night Prayer (Tahajjud), Hadith 224
• Sahih al-Bukhari, Book of Night Prayer (Tahajjud), Hadith 224