(60) باب وَقْتِ رَكْعَتَىِ الْفَجْرِ وَذِكْرِ الاِخْتِلاَفِ عَلَى نَافِعٍ
It was narrated from Hafsah that:
The Prophet (ﷺ) used to pray the two rak'ahs of Fajr, two brief rak'ahs. (FR)
Reference (FR): Sunan an-Nasa'i 1765 (FR)
In-book reference (FR): Book 20, Hadith 168 (FR)
English translation (FR): Vol. 2, Book 20, Hadith 1766 (FR)