Salim b. 'Abdullah (b. 'Umar) reported on the authority of his father that Allah's Messenger (ﷺ) observed the prayer of a traveller, i. e. two rak'ahs in Mina, and other places; so did Abu Bakr and 'Umar, and 'Uthman too observed two rak'ahs at the beginning of his caliphate, but he then completed four
Ibn 'Umar reported:The Messenger of Allah (ﷺ) said two rak'ahs at Mina, and Abu Bakr after him, and 'Umar after Abu Bakr, and 'Uthman at the beginning of his caliphate; then 'Uthman observed four rak'ahs, and when Ibn 'Umar prayed with the Imam, he said four rak'ahs, but when he observed prayer alone, he said two rak'ahs
Ibn 'Umar reported:The Apostle of Allah (ﷺ) said in Mina the prayer of a traveller (short prayer) ; Abu Bakr and 'Umar did the same and 'Uthmia did it for eight years or six years. Hafs (one of the narrators) said: Ibn 'Umar would also say two rak'ahs at Mina and then go to bed. I said to him: O uncle, I wish you could have said two rak'ahs (of Sunnah prayer after shorenting the Fard prayer). He said: Were I to do that, I would have completed the prayer
This hadith has been narrated by Shu'ba with the same chain of transmitters but no mention has been made of Mina, but they (the narrators) only said:He prayed while travelling
Ibrahim reported:I heard 'Abd al-Rahman as saying; 'Uthman led us four rak'ahs of prayer at Mina. It was reported to Abdullah b. Mas'ud and he recited:" Surely we are Allah's and to Him shall we return," and then said: I prayed with the Messenger of Allah (ﷺ) at Mina two rak'ahs of prayer. I prayed along with Abu Bakr al-Siddiq two rak'ahs of prayer at Mina. I prayed along with 'Umar b. Khattab two rak'ahs of prayer at Mina. I wish I had my share of the two rak'ahs acceptable (to God) for the four rak'ahs
A hadith like this has been reported by A'mash with the same chain of transmitters
Hədis 1598 — Sahih Muslim 6:29
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَقُتَيْبَةُ، قَالَ يَحْيَى أَخْبَرَنَا وَقَالَ، قُتَيْبَةُ حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ أَبِي إِسْحَاقَ، عَنْ حَارِثَةَ بْنِ وَهْبٍ، قَالَ صَلَّيْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم بِمِنًى - آمَنَ مَا كَانَ النَّاسُ وَأَكْثَرَهُ - رَكْعَتَيْنِ .
Haritha b. Wahb reported:I prayed with the Messenger of Allah (ﷺ) two rak'ahs and most of them offered two rak'ahs only in Mina, while the people felt secure
Wahb al-Khuza'i reported:I prayed behind the Messenger of Allah (ﷺ) at Mina, and there was the greatest number of people, and they prayed two rak'ahs on the occasion of the Farewell Pilgrimage. (Muslim said: Haritha b. Wahb al-Khuza'i is the brother of 'Ubaidullah b. 'Umar son of Khattab from the side of his mother)