Musannaf Ibn Abi Shaybah

Hazrat Jabir bin Zaid narrates from Ibn Abbas (may Allah be pleased with them both) that he said: I have performed eight (rak‘ahs) together and seven (rak‘ahs) together with the Noble Prophet (peace and blessings of Allah be upon him). The narrator says: I said, O Abu Sha‘sha‘! In my opinion, he delayed Zuhr and performed ‘Asr early (so eight rak‘ahs were performed together), and delayed Maghrib and performed ‘Isha early (so seven rak‘ahs were performed together). He said: That is also my opinion.