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