Sayyiduna Anas (may Allah be pleased with him) said: the Prophet (peace and blessings be upon him) used to order the giving of gifts to strengthen the ties between people, and he would say: "If people were to accept Islam, they would give gifts to one another without (being driven by) hunger (and need)."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 753