The Peak of Eloquence · Hadith 611 (#Passage #3)

فسئل (عليه السلام) عن معنى قوله هذا، فجمع أصابعه ووضعها بين أذنه وعينه ثمّ قال: الْبَاطِلُ أَنْ تَقُولَ سَمِعْتُ، وَالْحَقُّ أَنْ تَقُولَ رَأَيْتُ!

Amīr al-mu’minīn was asked the meaning of this whereupon he closed his fingers together and put them between his ear and eye and said: It is falsehood when you say, “I have heard so,” while it is truth when you say, “I have seen.”

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