Sahih al-Bukhari, Volume 7, Book 72, Hadith 792 (USC-MSA) ⓘ
Narrated Anas: The Prophet had big hands, and I have never seen anybody like him after him. The hair of the Prophet was wavy, neither curly nor straight.
حَدَّثَنَا مُسْلِمٌ، حَدَّثَنَا جَرِيرٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم ضَخْمَ الْيَدَيْنِ، لَمْ أَرَ بَعْدَهُ مِثْلَهُ، وَكَانَ شَعَرُ النَّبِيِّ صلى الله عليه وسلم رَجِلاً، لاَ جَعْدَ، وَلاَ سَبِطَ.
also referenced under: Book 77, Hadith 123 (In-Book) & Hadith 5906 (DarusSalam)