Sunan an-Nasa'i, Volume 3, Book 22, Hadith 2156 (DarusSalam) ⓘ
It was narrated that Silah bin Zufar said: "I had Sahur with Hudhaifah, then we went out to the Masjid. We prayed the two Rakahs of Fajr, then the Iqamah for prayer was made, and we prayed."
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ فُضَيْلٍ، قَالَ حَدَّثَنَا أَبُو يَعْفُورٍ، قَالَ حَدَّثَنَا إِبْرَاهِيمُ، عَنْ صِلَةَ بْنِ زُفَرَ، قَالَ تَسَحَّرْتُ مَعَ حُذَيْفَةَ ثُمَّ خَرَجْنَا إِلَى الْمَسْجِدِ فَصَلَّيْنَا رَكْعَتَىِ الْفَجْرِ ثُمَّ أُقِيمَتِ الصَّلاَةُ فَصَلَّيْنَا .
also referenced under: Hadith 2154 (Reference) & Book 22, Hadith 65 (In-Book)