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."
[Al-Bukhari and Muslim].
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". .