مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2219
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas (رضي الله عنه) said: Abu Jahl said… And he mentioned a similar report.
Musnad Ahmad 2226Its isnad is saheeh]