"I would see the Messenger of Allah ﷺ praying two rak'ahs of Fajr and making them so brief that I said: 'Did he recite the Umm Al-Kitab in them?'"  

إِنْ كُنْتُ لأَرَى رَسُولَ اللَّهِ ﷺ يُصَلِّي رَكْعَتَىِ الْفَجْرِ فَيُخَفِّفُهُمَا حَتَّى أَقُولَ أَقَرَأَ فِيهِمَا بِأُمِّ الْكِتَابِ  

The Prophet ﷺ would pray two rak'ahs before the dawn prayer lightly so much so that I would say: Did he recite Surah al-Fatihah in them.  

كَانَ النَّبِيُّ ﷺ يُخَفِّفُ الرَّكْعَتَيْنِ قَبْلَ صَلاَةِ الْفَجْرِ حَتَّى إِنِّي لأَقُولُ هَلْ قَرَأَ فِيهِمَا بِأُمِّ الْقُرْآنِ  

[Machine] She heard Aisha say, "If the Messenger of Allah ﷺ used to perform the two Rak'ahs before dawn, he would shorten them. I would even ask, 'Did he recite in them the Mother of the Quran?'"  

أَنَّهَا سَمِعَتْ عَائِشَةَ تَقُولُ إِنْ كَانَ رَسُولُ اللهِ ﷺ لَيُصَلِّي الرَّكْعَتَيْنِ اللَّتَيْنِ قَبْلَ الْفَجْرِ فَيُخَفِّفُهُمَا حَتَّى إِنْ كُنْتُ لَأَقُولُ هَلْ قَرَأَ فِيهِمَا بِأُمِّ الْقُرْآنِ  

[Machine] The Messenger of Allah ﷺ used to pray the two units of prayer before the dawn (Fajr) prayer, and he would shorten them until I would wonder if he had recited the Umm Al-Quran.  

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي الرَّكْعَتَيْنِ اللَّتَيْنِ قَبْلَ الْفَجْرِ فَيُخَفِّفُهُمَا حَتَّى أَقُولَ هَلْ قَرَأَ بِأُمِّ الْقُرْآنِ  

The Prophet ﷺ would pray two rak'ahs before the dawn prayer lightly so much so that I would say: Did he recite Surah al-Fatihah in them. (Using translation from Abū Dāʾūd 1255)   

«كَانَ النَّبِيُّ ﷺ لَيُصَلِّي رَكْعَتَيِ الْفَجْرِ فَيُخَفِّفُهُمَا حَتَّى إِنِّي لَأَقُولُ هَلْ قَرَأَ فِيهِمَا بِأُمِّ الْقُرْآنِ؟ »  

"I would see the Messenger of Allah ﷺ praying two rak'ahs of Fajr and making them so brief that I said: 'Did he recite the Umm Al-Kitab in them?'" (Using translation from Nasāʾī 946)  

إِنْ كُنْتُ لَأَرَى رَسُولَ اللهِ ﷺ يُصَلِّي رَكْعَتَيِ الْفَجْرِ فَيُخَفِّفُهُمَا حَتَّى أَقُولَ مَا قَرَأَ فِيهِمَا بِأُمِّ الْكِتَابِ