"I used to be asleep while my legs would be in the front of the Messenger of Allah ﷺ while he was praying during the night. When he wanted to prostrate, he would prod my feet, so I would pull them up, and he would prostrate.
أَنَّهَا قَالَتْ كُنْتُ أَكُونُ نَائِمَةً وَرِجْلاَىَ بَيْنَ يَدَىْ رَسُولِ اللَّهِ ﷺ وَهُوَ يُصَلِّي مِنَ اللَّيْلِ فَإِذَا أَرَادَ أَنْ يَسْجُدَ ضَرَبَ رِجْلَىَّ فَقَبَضْتُهُمَا فَسَجَدَ