ذِكْرُ الْخَبَرِ الْمُدْحِضِ قَوْلَ مَنْ زَعَمَ أَنَّ الْحَاجَّ عَلَيْهِ أَنْ يُتَمِّمَ الصَّلَاةَ بِمِنًى أَيَّامَ مُقَامِهِ بِهَا
Salim b. 'Abdullah (b. 'Umar) reported on the authority of his father that Messenger of Allah 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. (Using translation from Muslim 694a)
«أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى صَلَاةَ الْمُسَافِرِ بِمِنًى رَكْعَتَيْنِ وَأَبُو بَكْرٍ وَعُمَرُ وَعُثْمَانُ رَكْعَتَيْنِ صَدْرًا مِنْ خِلَافَتِهِ ثُمَّ أَتَمَّهَا أَرْبَعًا»