Chapter on the Virtue of Good Deeds
Man Lā Yaḥḍuruh al-Faqīh|Volume 2|Book 1|Chapter 11
وَ قَالَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ: «مَنْ أُتِيَ إِلَيْهِ اَلْمَعْرُوفُ فَلْيُكَافِئْ بِهِ وَ إِنْ عَجَزَ فَلْيُثْنِ فَإِنْ لَمْ يَفْعَلْ فَقَدْ كَفَرَ اَلنِّعْمَةَ ».
The Messenger of Allah سبحانه وتعالى (peace be upon him and his family) said: "Whoever receives kindness, let him reciprocate it. If he is unable to do so, let him express gratitude. If he does not, then he has denied the blessing."
- Ṣaḥīḥ al-Faqīh