Salman bin Amir al-Dabbi (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) said: "Your charity to a poor person (miskin) is one charity, and charity to a relative carries two rewards: one for upholding kinship ties and the other for charity."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7734