مُوَطَّأُ مَالِكٍ
Muwatta Malik 283
Tahajjud
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ حَفْصَةَ، زَوْجَ النَّبِيِّ صلى الله عليه وسلم أَخْبَرَتْهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ إِذَا سَكَتَ الْمُؤَذِّنُ عَنِ الأَذَانِ لِصَلاَةِ الصُّبْحِ صَلَّى رَكْعَتَيْنِ خَفِيفَتَيْنِ قَبْلَ أَنْ تُقَامَ الصَّلاَةُ .
Yahya related to me from Malik from Nafi from Abdullah ibn Umar that Hafsa, the wife of the Prophet, (ﷺ), told him that the Messenger of Allah, (ﷺ), used to pray two quick rakas when the muadhdhin had finished the adhan for the subh prayer, before the iqama was said for the prayer.
Arabic/English book reference: Book 7, Hadith 29