[Machine] The Messenger of Allah ﷺ used to recite to them, she said, "So I think he used to recite something like 'Say, O disbelievers, and say, He is Allah, the One.'"
كَانَ رَسُولُ اللهِ ﷺ يُخَفِّفُهُمَا قَالَتْ فَأَظُنُّهُ كَانَ يَقْرَأُ بِنَحْوٍ مِنْ قُلْ يَا أَيُّهَاالْكَافِرُونَ وَقُلْ هُوَ اللهُ أَحَدٌ
[Machine] The Prophet ﷺ used to hide what he would recite in them, and he mentioned, "Say, O disbelievers" [Surah Al-Kafirun 1] and "Say, He is Allah, [who is] One" [Surah Al-Ikhlas 1]. Sa'id said in the two units of Fajr prayer.
كَانَ رَسُولُ اللَّهِ ﷺ يُخْفِي مَا يَقْرَأُ فِيهِمَا وَذَكَرَتْ {قُلْ يَا أَيُّهَا الْكَافِرُونَ} [الكافرون 1] وَ {قُلْ هُوَ اللَّهُ أَحَدٌ} [الإخلاص 1] قَالَ سَعِيدٌ فِي رَكْعَتَيِ الْفَجْرِ