مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2988
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas (رضي الله عنه) that The Muslims caught one of the prominent men of the mushrikeen and killed him. They (the mushrikeen) asked to buy back his body and the Prophet (ﷺ) forbade them to do that. Mu'ammal said: The Prophet (ﷺ) forbade them to sell his body.
Musnad Ahmad 3011Its isnad is da’eef]