Arabic (Original)
أَخْبَرَنَا أَبُو عَلِيٍّ الرُّوذْبَارِيُّ أنبأ أَبُو بَكْرِ بْنُ دَاسَةَ ثنا أَبُو دَاوُدَ ثنا مُوسَى بْنُ إِسْمَاعِيلَ ثنا حَمَّادٌ عَنْ أَيُّوبَ عَنِ الزُّهْرِيِّ أَنَّ عُثْمَانَ بْنَ عَفَّانَ ؓ أَتَمَّ الصَّلَاةَ بِمِنًى مِنْ أَجْلِ الْأَعْرَابِ لِأَنَّهُمْ كَثُرُوا عَامَئِذٍ فَصَلَّى بِالنَّاسِ أَرْبَعًا لِيُعْلِمَهُمْ البيهقي ٥٤٣٧: عن
English Translation
Al-Zuhri narrated that Uthman ibn Affan (may Allah be pleased with him) completed the prayer at Mina because of the Bedouins, as they were numerous that year, so he prayed four rak'ahs with the people to teach them that the prayer is not only two rak'ahs.