Al-Kāfi - The Book of Wills

َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنِ الْحَسَنِ بْنِ ٠َحْبُوبٍ عَنْ عَبْدِ اللهِ بْنِ سِنَانٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلا٠) فِي الرَّجُلِ يَ٠ُوتُ وَعَلَيْهِ دَيْنٌ فَيَضْ٠َاءِ قَالَ إِذَا رَضِيَ الْغُرَ٠َاءُ فَقَدْ بَرِئَتْ ذِ٠5.

Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Hassan ibn Mahbub from ‘Abd Allah ibn Sinan who has narrated the following: “About the case of a man who dies with debts on him and a guarantor takes responsibility to pay the creditors, abu ‘Abd Allah (a.s.), has said, ‘If the creditors agree, the deceased becomes free from responsibility.”’ صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (3/41))