الجامع المختصر لفضائل الآيات والسور
Virtues of the Qur'an's Chapters and Verses
The Messenger of Allah ﷺ recited this sūrah in the two rakʿahs before fajr prayer and the two rakʿahs after maghrib prayer
قَرَأَ رَسُولُ اللهِ ﷺ بِهَذِهِ السُّورَةِ فِي الرَّكعَتَيْنِ قَبْلَ الْفَجْرِ وَفِي الرَّكعَتَيْنِ بَعْدَ الْمَغْرِبِ
Virtues of the Qur'an's Chapters and Verses 85
Abu Hurayrah reported that the Messenger of Allah ﷺ recited in the two (optional) rakʿahs of fajr:
Qul yā ayyuhal kāfirūn (Sūrat al-Kāfirūn), and Qul huwa Allāhu aḥad (Sūrat al-Ikhlāṣ). Reference: Sahih Muslim 726.
عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَرَأَ فِي ركعتي الْفَجْرِ (‏ قُلْ يَا أَيُّهَا الْكَافِرُونَ‏)‏ وَ (‏ قُلْ هُوَ اللَّهُ أَحَدٌ‏).
Reference : Virtues of the Qur'an's Chapters and Verses 85