(60) باب وَقْتِ رَكْعَتَىِ الْفَجْرِ وَذِكْرِ الاِخْتِلاَفِ عَلَى نَافِعٍ
It was narrated from Abdullah bin Umar, from Hafsah, that:
The Messenger of Allah (ﷺ) used to pray two rak'ahs when dawn had broken. (ES)
Reference (ES): Sunan an-Nasa'i 1775 (ES)
In-book reference (ES): Book 20, Hadith 178 (ES)
English translation (ES): Vol. 2, Book 20, Hadith 1776 (ES)