al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
٨٥. وَقَالَ (عليه السلام): مَنْ تَرَكَ قَوْلَ لَا أَدْرِي أُصِيبَتْ مَقَاتِلُهُ.
85. Amīr al-mu’minīn, peace be upon him, said: Whoever abandons saying, “I do not know” meets his destruction.
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