Sahih al-Bukhari 3561
Book 61: Virtues and Merits of the Prophet (pbuh) and his Companions · Narrated by Anas
Arabic
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ مَا مَسِسْتُ حَرِيرًا وَلاَ دِيبَاجًا أَلْيَنَ مِنْ كَفِّ النَّبِيِّ صلى الله عليه وسلم، وَلاَ شَمِمْتُ رِيحًا قَطُّ أَوْ عَرْفًا قَطُّ أَطْيَبَ مِنْ رِيحِ أَوْ عَرْفِ النَّبِيِّ صلى الله عليه وسلم.
English translation
Narrated Anas:I have never touched silk or Dibaj (i.e. thick silk) softer than the palm of the Prophet (ﷺ) nor have I smelt a perfume nicer than the sweat of the Prophet
Reference: Sahih al-Bukhari 3561, Book of Virtues and Merits of the Prophet (pbuh) and his Companions. English translation by Dr. Muhammad Muhsin Khan.