I heard Anas as saying that the Companion of the Messenger of Allah ﷺ dozed off and then offered prayer and did not perform ablution. He (the narrator) said: I asked him if he had actually heard it from Anas. He said: By Allah. yes.
سَمِعْتُ أَنَسًا يَقُولُ كَانَ أَصْحَابُ رَسُولِ اللَّهِ ﷺ يَنَامُونَ ثُمَّ يُصَلُّونَ وَلاَ يَتَوَضَّئُونَ قَالَ قُلْتُ سَمِعْتَهُ مِنْ أَنَسٍ قَالَ إِي وَاللَّهِ