Narrated by:Ibn Umar that Hafsah said
It was narrated from Ibn Umar that Hafsah said:"When dawn came, the Messenger of Allah (ﷺ) would not pray anything but two brief rak'ahs."
أَخْبَرَنَا أَحْمَدُ بْنُ عَبْدِ اللَّهِ بْنِ الْحَكَمِ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ زَيْدِ بْنِ مُحَمَّدٍ، قَالَ سَمِعْتُ نَافِعًا، عَنِ ابْنِ عُمَرَ، عَنْ حَفْصَةَ، أَنَّهَا قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا طَلَعَ الْفَجْرُ لاَ يُصَلِّي إِلاَّ رَكْعَتَيْنِ خَفِيفَتَيْنِ .
Nesai
The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day • Hadith 1776