وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا
قَالَتْ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: إِذَا كَانَ جُنُبًا فَأَرَادَ أَنْ يَأْكُلَ أَوْ ينَام تَوَضَّأ وضوءه للصَّلَاة
Aishah said that when the Prophet (sallallahu alayhi wa sallam) was defiled and wanted to eat or sleep, he performed the ablution prescribed for prayer.
Mishkat al-Masabih 421, Book 4, Purification, Hadith 157. 1 min read