Chapter on Usury (Riba)
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 27
وَ قَالَ عَلَيْهِ اَلسَّلاَمُ: "لَيْسَ بَيْنَ اَلرَّجُلِ وَ بَيْنَ وَلَدِهِ رِبًا وَ لَيْسَ بَيْنَ اَلسَّيِّدِ وَ بَيْنَ عَبْدِهِ رِبًا ".
Imam عليه السلام said: "There is no usury between a man and his child, and there is no usury between a master and his servant."
- Ṣaḥīḥ al-Faqīh