Sahih al-Bukhari Book 9, Hadith 25
We used to pray the `Asr prayer and after that if someone happened to go to the tribe of Bani `Amr
bin `Auf, he would find them still praying the `Asr (prayer).
I along with my father went to Abu- Barza Al-Aslami and my father asked him, "How Allah's Messenger (ﷺ) used to offer the five compulsory congregational prayers?" Abu- Barza said, "The Prophet (ﷺ) used to pray the Zuhr prayer which you (people) call the first one at midday when the sun had just declined The `Asr prayer at a time when after the prayer, a man could go to the house at the farthest place in Medina (and arrive) while the sun was still hot. (I forgot about the Maghrib prayer). The Prophet (ﷺ) Loved to delay the `Isha which you call Al- `Atama and he disliked sleeping before it and speaking after it. After the Fajr prayer he used to leave when a man could recognize the one sitting beside him and he used to recite between 60 to 100 Ayat (in the Fajr prayer) .
that he heard Abu Umama saying: We prayed the Zuhr prayer with `Umar bin `Abdul `Aziz and then went to Anas bin Malik and found him offering the `Asr prayer. I asked him, "O uncle! Which prayer have you offered?" He said 'The `Asr and this is (the time of) the prayer of Allah s Apostle which we used to pray with him."