مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2047
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Sa’eed bin Jubair said: Ibn ‘Abbas met me and said: Have you got married? I said: No. He said: Get married. Then he met me after that and said: Have you got married? I said: No. He said: Get married, for the best of this ummah is the one who has the most wives.
Musnad Ahmad 2048Saheeh because of corroborating evidence]