(52) باب فِي الْمِنْدِيلِ
Ibn 'Abbas reported the Messenger of Allah (ﷺ) as saying :
When one of you eats, he must not wipe his hand with a handkerchief till he licks it or gives it to someone to lick.
Reference: Sunan Abi Dawud 3847
In-book reference: Book 28, Hadith 112
English translation: Book 27, Hadith 3838