The Peak of Eloquence · Hadith 1744 (#Passage #103)

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.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).