It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever eats food should not wipe his hand until he has licked his fingers, for he does not know in which part of his food blessing has been placed for him."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Busr bin Sa'id except Bukayr bin Abdullah bin al-Ashajj, and his son Makhramah is alone in narrating it from him."
Hadith Referenceالمعجم الأوسط / باب الميم / 5380
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 5434»