Abu Dawud Book 11, Hadith Number 2878.
Chapter : If a man dies and leaves debt to be paid by him his creditors will be asked to defer their repayment for sometime and the heirs will be treated with leniency.
Narated By N/A : Jarir b. ‘Abd Allah said that his father died and left a debt of thirty wasqs of a Jew on him. Jabir asked him to defer, but he refused. Jabir then spoke to the Apostle of Allah (PBUH) asking him to mediate to him on his behalf. The Apostle of Allah (PBUH) came to the Jew and spoke to him about taking fruit-dates in lieu of the debt that was on him. But he refused. The Apostle of Allah (PBUH) asked him to defer (the debt) to him, but he refused. He then narrated the rest of the tradition.