al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
١٦٤. وَقَالَ (عليه السلام): مَنْ قَضَى حَقَّ مَنْ لَا يَقْضِي حَقَّهُ فَقَدْ عَبَدَهُ.
164. Amīr al-mu’minīn, peace be upon him, said: He who fulfils the right of a man who does not fulfil his right, (is as though he) worships him.
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