Jami` at-Tirmidhi, Volume 1, Book 4, Hadith 585 (DarusSalam) ⓘ
Jabir bin Samurah narrated: "When the Prophet prayed Fajr he would remain seated where he had prayed until the sun had risen."
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ سِمَاكِ بْنِ حَرْبٍ، عَنْ جَابِرِ بْنِ سَمُرَةَ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا صَلَّى الْفَجْرَ قَعَدَ فِي مُصَلاَّهُ حَتَّى تَطْلُعَ الشَّمْسُ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
also referenced under: Hadith 585 (Reference) & Book 6, Hadith 42 (In-Book)