Hadithcore
Al-Adab Al-Mufrad, 1028
sahih· Al-Albani

Al-Miqdad ibn al-Aswad said, "The Prophet, (ﷺ), used to come at night and would give the greeting in such a way that it would not awaken anyone asleep, but the person who was awake would hear it."

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، قَالَ‏:‏ حَدَّثَنَا سُلَيْمَانُ بْنُ الْمُغِيرَةِ، قَالَ‏:‏ حَدَّثَنَا ثَابِتٌ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنِ الْمِقْدَادِ بْنِ الأَسْوَدِ قَالَ‏:‏ كَانَ النَّبِيُّ صلى الله عليه وسلم يَجِيءُ مِنَ اللَّيْلِ، فَيُسَلِّمُ تَسْلِيمًا لاَ يُوقِظُ نَائِمًا، وَيُسْمِعُ الْيَقْظَانَ‏.‏

References2 variants
In-Book Reference
Book 42, Hadith 65
English Reference
Book 42, Hadith 1028