Chapter on Debt and Loan
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 2
وَ سَأَلَ سَمَاعَةُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: عَنِ اَلرَّجُلِ يَنْزِلُ عَلَى اَلرَّجُلِ وَ لَهُ عَلَيْهِ دَيْنٌ أَ يَأْكُلُ مِنْ طَعَامِهِ فَقَالَ "نَعَمْ يَأْكُلُ مِنْ طَعَامِهِ ثَلاَثَةَ أَيَّامٍ وَ لاَ يَأْكُلُ بَعْدَ ذَلِكَ شَيْئاً".
Sama'ah asked Abu Abdillah عليه السلام about a man who stays with another man to whom he owes a debt. Is it permissible for him to eat from his food? Imam عليه السلام said: "Yes, he may eat from his food for three days, but after that, he should not eat anything."
- Ṣaḥīḥ al-Faqīh, p. 216