al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
٢٠٤. وَقَالَ (عليه السلام): لَا يُزَهِّدَنَّكَ فِي الْمَعْرُوفِ مَنْ لَا يَشْكُرُهُ لَكَ، فَقَدْ يَشْكُرُكَ عَلَيْهِ مَنْ لَا يَسْتَمْتِعُ بِشَيْءٍ مِنْهُ، وَقَدْ تُدْرِكُ مِنْ شُكْرِ الشَّاكِرِ أَكْثَرَ مِمَّا أَضَاعَ الْكَافِرُ ﴿وَاللهُ يُحِبُّ الْمُحْسِنِينَ﴾.
204. Amīr al-mu’minīn, peace be upon him, said: If someone is not grateful to you, that should not prevent you from good actions, because (possibly) such a person will feel grateful about it who has not even drawn any benefit from it, and his gratefulness will be more than the ingratitude of the denier; And Allāh loves those who do good. (Qur’ān, 3:134,148; 5:93)
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