Narrated 'Aishah:
that the Messenger of Allah (ﷺ) said: "The best of you is the best to his wives, and I am the best of you to my wives, and when your companion dies, leave him alone." (JA)
English reference (JA): Vol. 1, Book 46, Hadith 3895 (JA)
Arabic reference (JA): Book 49, Hadith 4269 (JA)