The Book of Shortening the Prayer When Traveling
15/2. Chapter:
Prayer in Mina
Sunan an-Nasai
أَخْبَرَنَا عَلِيُّ بْنُ خَشْرَمٍ، قَالَ حَدَّثَنَا عِيسَى، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ، قَالَ صَلَّى عُثْمَانُ بِمِنًى أَرْبَعًا حَتَّى بَلَغَ ذَلِكَ عَبْدَ اللَّهِ فَقَالَ لَقَدْ صَلَّيْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم رَكْعَتَيْنِ .
It was narrated that 'Abdur-Rahman bin Yazid said: "Uthman prayer four (rak'ahs) in Mina until news of that reached 'Abdullah who said: 'I prayed two rak'ahs with the Messenger of Allah (ﷺ).'"
Reference : Sunan an-Nasa'i 1449In-book reference : Book 15, Hadith 17English translation : Vol. 2, Book 15, Hadith 1450