Sahih Muslim 1731
The Book of Prayer - Travellers
حَدَّثَنَا أَبُو كُرَيْبٍ، أَخْبَرَنَا ابْنُ بِشْرٍ، عَنْ مِسْعَرٍ، عَنْ سَعْدٍ، عَنْ أَبِي سَلَمَةَ، عَنْ عَائِشَةَ، قَالَتْ مَا أَلْفَى رَسُولَ اللَّهِ صلى الله عليه وسلم السَّحَرُ الأَعْلَى فِي بَيْتِي - أَوْ عِنْدِي - إِلاَّ نَائِمًا .
A'isha reported:Never did the earlier part of the dawn find the Messenger of Allah (ﷺ) but sleeping in my house or near me
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.