Sahih al-Bukhari #1174 · Prayer at Night (Tahajjud)

I heard Abu Ash-sha'tha' Jabir saying, "I heard Ibn 'Abbas saying, 'I offered with Allah's Messenger (ﷺ) eight rak'at (of Zuhr and 'Asr prayers) together and seven rak'at (the Maghrib and the 'Isha' prayers) together.' " I said, "O Abu Ash-shatha! I think he must have prayed the Zuhr late and the 'Asr early; the 'Isha early and the Maghrib late." Abu Ash-sha'tha' said, "I also think so." (See Hadith No. 518 Vol)