7 chains merged

"The Prophet (ﷺ) prayed eight rak`at for the Zuhr and `Asr, and seven for the Maghrib and `Isha prayers in Medina." Aiyub said, "Perhaps those were rainy nights." Anas said, "May be."

The Prophet (ﷺ) prayed seven rak`at together and eight rak`at together.

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

I observed with the Messenger of Allah (ﷺ) eight (rak'ahs) in combination, and seven rak'ahs in combination. I (one of the narrators) said: O Abd Sha'tha', I think that he (the Prophet) had delayed the noon prayer and hastened the afternoon

Ibn 'Abbas reported that the Messenger of Allah (ﷺ) observed in Medina seven (rak'ahs) and eight (rak'ahs), i. e. (be combined) the noon and afternoon prayers (eight rak'ahs) and the sunset and 'Isha' prayers (seven rak'ahs).

"I prayed with the Prophet (ﷺ) in Al-Madinah, eight together and seven together. He delayed Zuhr and brought 'Asr forward, and he delayed Maghrib and brought 'Isha' forward."

I prayed with the Prophet (ﷺ) eight (rak"ahs) together and seven (rak"ahs) together. I [the narrator] said: O Abush-Sha"tha", I think he delayed Zuhr and hastened ‘Asr, and he delayed Maghrib and hastened "Isha". He said: I think so too.