Hadith.5540 - Al-Hasan ibn Mahbub narrated from Hisham ibn Salim from Isma'il ibn Jabir, who said: I asked Abu Abdullah عليه السلام, about a man who, while ill and in debt, acknowledged a right for one of his heirs. Imam عليه السلام said: "It is permissible if what he acknowledged is less than one-third (of his wealth)."