Riyad as-Salihin 1104
The Book of Virtues
Briefness to be Adopted in Performing the two Rak'ah Sunnah before Fajr Prayer, their time and the Surah to recite in them
'Aishah (May Allah be pleased with her) reported: The Prophet (ﷺ) used to perform two Rak'ah short prayer between the Adhan (call to prayer) and the Iqamah of the dawn (Fajr) prayers. [Al- Bukhari and Muslim] In another narration, 'Aishah (May Allah be pleased with her) said: The Messenger of Allah (ﷺ) used to perform two supererogatory Rak'ah prayer of Fajr and make them so short in duration that I used to think whether he (ﷺ) had recited Surat Al-Fatihah (in it) or not. [Al-Bukhari and Muslim] In the narration of Muslim, 'Aishah (May Allah be pleased with her) said: When the Messenger of Allah (ﷺ) used to hear the Adhan (of Fajr prayer) he would perform two supererogatory Rak'ah prayer and would make them short.