مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1918
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
"Amr said: Abush-Sha"tha" said: Who is she? I said: They say she is Maimoonah. He said: Ibn "Abbas told me that the Prophet (ﷺ) married Maimoonah when he was in ihram.
Musnad Ahmad 1919Sahih (Darussalam) [, al-Bukhari (1837) and Muslim (1410)]