(The people) stood up for prayer and the Messenger of Allah ﷺ was whispering to a man, and in the narration of 'Abd al-Warith (the words are): The Apostle of Allah ﷺ was having a private conversation with a man, and did not start the prayer till the people dozed off.  

أُقِيمَتِ الصَّلاَةُ وَرَسُولُ اللَّهِ ﷺ نَجِيٌّ لِرَجُلٍ وَفِي حَدِيثِ عَبْدِ الْوَارِثِ وَنَبِيُّ اللَّهِ ﷺ يُنَاجِي الرَّجُلَ فَمَا قَامَ إِلَى الصَّلاَةِ حَتَّى نَامَ الْقَوْمُ  

(The people) stood up for prayer and the Messenger of Allah ﷺ was talking in whispers with a man, and he did not discontinue the conversation till his Companions dozed off; he then came and led the prayer.  

أُقِيمَتِ الصَّلاَةُ وَالنَّبِيُّ ﷺ يُنَاجِي رَجُلاً فَلَمْ يَزَلْ يُنَاجِيهِ حَتَّى نَامَ أَصْحَابُهُ ثُمَّ جَاءَ فَصَلَّى بِهِمْ  

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  

(The people) stood up for the night prayer when a man spoke forth: I need to say something. The Apostle of Allah ﷺ entered into secret conversation with him, till the people dozed off or some of the people (dozed off), and then they said the prayer.  

رَجُلٌ لِي حَاجَةٌ فَقَامَ النَّبِيُّ ﷺ يُنَاجِيهِ حَتَّى نَامَ الْقَوْمُ أَوْ بَعْضُ الْقَوْمِ ثُمَّ صَلَّوْا