مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3806
Musnad of Abdullah bin Mas'ood
It was narrated that 'Abdullah bin Mas'ood (رضي الله عنه) said: The mushrikoon kept the Messenger of Allah (ﷺ) from praying ‘Asr until the sun turned yellow or red. He said: "They distracted us from the middle prayer; may Allah fill their bellies and their graves with fire.”
Musnad Ahmad 3829Saheeh and its isnad is qawi, Muslim (628)]