´Narrated Ibn 'Abbas:` It was narrated that Ibn 'Abbas said: "When the Messenger of Allah died he had nine wives; he used to be intimate with all of them except one, who had given her day and night to 'Aishah."
Hadith ReferenceSunan an-Nasa'i / The Book of Marriage / Hadith: 3199
Hadith Gradingالألبانی:صحيح الإسناد | زبیر علی زئی:إسناده صحيح