(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. (DE)
Reference (DE): Sunan an-Nasa'i 1775 (DE)
In-book reference (DE): Book 20, Hadith 178 (DE)
English translation (DE): Vol. 2, Book 20, Hadith 1776 (DE)