أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ سِمَاكٍ، عَنْ جَابِرِ بْنِ سَمُرَةَ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا صَلَّى الْفَجْرَ قَعَدَ فِي مُصَلاَّهُ حَتَّى تَطْلُعَ الشَّمْسُ ‏.‏

It was narrated that Jabir bin Samurah said: "When the Messenger of Allah (PBUH) prayed fajr, he would sit in the place where he had prayed until the sun rose." Translation Not Available

Book Ref: Sunan An Nisai Book 13 Hadith 1357
Web Ref:  Sunan An Nisai Vol 2 Book 13 Hadith 1358