Musannaf Ibn Abi Shayba 3:5850

Ibn ‘Uyaynah narrated to us, from ‘Amr, from Jabir ibn Zayd, from Ibn ‘Abbas, who said: "I prayed with the Messenger of Allah (may Allah bless him and grant him peace) eight [rak'ahs] together and seven [rak'ahs] together." He [the narrator] said: I said, "O Abu al-Sha'tha', I think he delayed the Dhuhr and hastened the ‘Asr, and delayed the Maghrib and hastened the ‘Isha'." He said: "And I think that as well."