Sayyiduna al-Miqdam (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him) that he (peace and blessings be upon him) said: "Whoever leaves a debt, it is our responsibility," and he said: "It is the responsibility of Allah and His Messenger; and whoever leaves wealth, it is for his heirs. I am the heir of one who has no heir: I will pay blood money on his behalf and inherit from him. And the maternal uncle is the heir of one who has no heir: he will pay blood money on his behalf and inherit from him."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الفرائض / 12209