(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