al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
٢٩٧. وَقَالَ (عليه السلام): مَا أَكْثَرَ الْعِبَرَ وأَقَلَّ الِاعْتِبَارَ.
297. Amīr al-mu’minīn, peace be upon him, said: How many are the objects of lessons, but how few the taking of lessons. [1]
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