Al-Kāfi - Volume 7 > One in His Illness Confesses His Indebtedness to One of his Heirs
Hadith #5

5- ابْنُ مَحْبُوبٍ عَنْ أَبِي وَلادٍ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) عَنْ رَجُلٍ مَرِيضٍ أَقَرَّ عِنْدَ الْمَوْتِ لِوَارِثٍ بِدَيْنٍ لَهُ عَلَيْهِ قَالَ يَجُوزُ ذَلِكَ قُلْتُ فَإِنْ أَوْصَى لِوَارِثٍ بِشَيْ‏ءٍ قَالَ جَائِزٌ.

5. Ibn Mahbub has narrated from abu Wallad who has narrated the following: “I once asked abu ‘Abd Allah, ‘Alayhi al-Salam, about the case of a man who in his illness at the time of his death confirms his owing a certain amount of debts to one of his heirs. He (the Imam) said, ‘It is permissible.’ I asked about his confirming his owing ‘something’ to one of his heirs. He (the Imam) said, ‘It is permissible.’”