(40) باب الْعِلْمِ وَالْعِظَةِ بِاللَّيْلِ
Narrated Um Salama:
One night Allah's Messenger (ﷺ) got up and said, "Subhan Allah! How many afflictions have been descended tonight and how many treasures have been disclosed! Go and wake the sleeping lady occupants of these dwellings (his wives) up (for prayers). A well-dressed (soul) in this world may be naked in the Hereafter. "
Reference: Sahih al-Bukhari 115
In-book reference: Book 3, Hadith 57
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 3, Hadith 115