Mishkat al-Masabih
Mishkat al-Masabih 1347
عَنِ ابْنِ عُمَرَ قَالَ: صَلَّى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بمنى رَكْعَتَيْنِ وَأَبُو بَكْرٍ بَعْدَهُ وَعُمَرُ بَعْدَ أَبِي بَكْرٍ وَعُثْمَانُ صَدَرًا مِنْ خِلَافَتِهِ ثُمَّ إِنَّ عُثْمَانَ صَلَّى بَعْدُ أَرْبَعًا فَكَانَ ابْنُ عُمَرَ إِذَا صَلَّى مَعَ الْإِمَامِ صَلَّى أَرْبَعًا وَإِذَا صلاهَا وَحده صلى رَكْعَتَيْنِ
Unreviewed translation. All hadiths in this collection are available in five languages. Titles and introductions may remain in Arabic.
Ibn Umar reported that the Messenger of God prayed two units at Mina, as did Abu Bakr after him and Umar after Abu Bakr. Uthman did so during the early part of his caliphate, then later prayed four. When Ibn Umar prayed with the imam, he prayed four; when he prayed alone, he prayed two. Al-Bukhari and Muslim transmitted it.