مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2016
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn "Abbas: Revelation came to the Prophet (ﷺ) when he was forty three; he stayed in Makkah for ten years and in Madinah for ten years, and he died when he was sixty-three.
Musnad Ahmad 2017Sahih (Darussalam) []