"The Messenger of Allah would fall asleep until he was breathing deeply, then he would get up and offer the prayer, and he did not perform ablution." (Hasan) Tanafisi said: "Wakiʿ said: 'She meant while he was prostrating (he would sleep).'"
كَانَ رَسُولُ اللَّهِ ﷺ يَنَامُ حَتَّى يَنْفُخَ ثُمَّ يَقُومُ فَيُصَلِّي وَلاَ يَتَوَضَّأُ قَالَ الطَّنَافِسِيُّ قَالَ وَكِيعٌ تَعْنِي وَهُوَ سَاجِدٌ