(60) باب وَقْتِ رَكْعَتَىِ الْفَجْرِ وَذِكْرِ الاِخْتِلاَفِ عَلَى نَافِعٍ
It was narrated from Ibn Umar that Hafsah said:
"When dawn came, the Messenger of Allah (ﷺ) would not pray anything but two brief rak'ahs." (DE)
Reference (DE): Sunan an-Nasa'i 1776 (DE)
In-book reference (DE): Book 20, Hadith 179 (DE)
English translation (DE): Vol. 2, Book 20, Hadith 1777 (DE)