Sayyiduna Salman al-Farisi (may Allah be pleased with him) said: I came to the Messenger of Allah (peace and blessings be upon him) with a vessel containing bread and relish. He (peace and blessings be upon him) said: "O Salman, what is this?" I said: "It is charity." He (peace and blessings be upon him) did not eat, and he said to the Companions (may Allah be pleased with them): "Eat it." Then I brought a vessel of bread and relish, and he (peace and blessings be upon him) said: "O Salman, what is this?" I said: "It is a gift." He (peace and blessings be upon him) ate it and said: "We eat gifts but we do not eat charity."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الهبات / 12049