Riyad as-SalihinChapter 2Hadith 68
Full Sharh — Riyad as-Salihin 68
عن ابن عباس رضى الله عنهما قال: قال رسول الله صلى الله عليه وسلم: "إذا أكل أحدكم طعاماً، فلا يمسح أصابعه حتى يلعقها أو يلعقها". ((متفق عليه))
English Translation
Ibn 'Abbas (May Allah be pleased with them) reported:: Messenger of Allah (ﷺ) said, "When one of you finishes eating, he should not wipe his fingers until he has licked them himself or has given them to someone else to lick for him." .
Source
Riyad as-Salihin(رياض الصالحين)
The Book About the Etiquette of Eating
Hadith Number
68