[Machine] The Prophet ﷺ used to prostrate two prostrations when the call for Fajr prayer was made, before performing the Fajr prayer, and he would make them short.
أَنَّ النَّبِيَّ ﷺ كَانَ «إِذَا نُودِيَ بِصَلَاةِ الصُّبْحِ سَجَدَ سَجْدَتَيْنِ قَبْلَ صَلَاةِ الصُّبْحِ يُخَفِّفُهُمَا»