GREETING THE PEOPLE WHEN SOME ARE ASLEEP H 865 "During the course of a lengthy sermon it was our practice to keep the Prophet's share of milk on one side. At night he would come and offer his greeting in a tone that did not disturb those sleeping but was heard by those who were awake. The Prophet, praise and peace be upon him, always came and gave his greeting according to his practice." R 865 Muslim with a chain up to Miqdad who related this.
853- وعن المِقْدَادِ رضي الله عنه في حدِيثهِ الطويل ، قَالَ : كُنَّا نَرْفَعُ للنَّبيِّ صلى الله عليه وآله وسلم نَصِيبَهُ مِنَ اللَّبَنِ ، فَيَجِيءُ مِنَ اللَّيْلِ ، فَيُسَلِّمُ تَسْلِيماً لاَ يُوقِظُ نَائِماً ، وَيُسْمِعُ اليَقْظَانَ ، فَجَاءَ النَّبِيُّ صلى الله عليه وآله وسلم فَسَلَّمَ كَمَا كَانَ يُسَلِّمُ . رواه مسلم .