It is narrated from Jabir bin Abdullah (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) used to say: "I am closer to the believers than their own selves. Whoever leaves wealth, it is for his family; and whoever leaves a debt or dependents, they are my concern and my responsibility."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 13000