(14) باب اسْتِحْبَابِ رَكْعَتَيْ سُنَّةِ الْفَجْرِ وَالْحَثِّ عَلَيْهِمَا وَتَخْفِيفِهِمَا وَالْمُحَافَظَةِ عَلَيْهِمَا وَبَيَانِ مَا يُسْتَحَبُّ أَنْ يُقْرَأَ فِيهِمَا
Hafsa reported that when it was dawn, the Messenger of Allah (ﷺ) did not observe (any other prayers) but two short rak'ahs. (DE)
Reference (DE): Sahih Muslim 723 c (DE)
In-book reference (DE): Book 6, Hadith 108 (DE)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1564 (DE)