مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3270
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that 'Abdullah bin Shaqeeq said. A man went to Ibn ‘Abbas (رضي الله عنه) and said: The prayer; but he did not respond to him. Then he said: The prayer, but (again) he did not respond to him. Then he said: The prayer. He (Ibn 'Abbas) said. Are you telling me it is time to pray? We used to put two prayers together with The Messenger of Allah (ﷺ), or at the time of the Messenger of Allah (ﷺ).
Musnad Ahmad 3293Its isnad is saheeh, Muslim (705)]