(1) The Book of Purification
كتاب الطهارة
(162) Chapter: Not Using A Cloth (Towel) After Ghusl
(162) باب تَرْكِ الْمِنْدِيلِ بَعْدَ الْغُسْلِ
Sunan an-Nasa'i 254 
It was narrated from Ibn 'Abbas that the Prophet (ﷺ) performed Ghusl and a cloth was brought to him, but he did not touch it, and he started doing like this with the water. [1] [1] This is a demonstration of his wiping off the water on his body with his hands.
أَخْبَرَنَا مُحَمَّدُ بْنُ يَحْيَى بْنِ أَيُّوبَ بْنِ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، عَنِ الأَعْمَشِ، عَنْ سَالِمٍ، عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم اغْتَسَلَ فَأُتِيَ بِمِنْدِيلٍ فَلَمْ يَمَسَّهُ وَجَعَلَ يَقُولُ بِالْمَاءِ هَكَذَا ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan an-Nasa'i 254
In-book reference : Book 1, Hadith 255
English translation : Vol. 1, Book 1, Hadith 255