(60) باب وَقْتِ رَكْعَتَىِ الْفَجْرِ وَذِكْرِ الاِخْتِلاَفِ عَلَى نَافِعٍ
It was narrated from Ibn Umar, from Hafsah, that:
When the call to Subh prayer was given, the Messenger of Allah (ﷺ) would pray two brief rak'ahs before going to pray. (DE)
Reference (DE): Sunan an-Nasa'i 1777 (DE)
In-book reference (DE): Book 20, Hadith 180 (DE)
English translation (DE): Vol. 2, Book 20, Hadith 1778 (DE)