Nahj al-Balāgha #1943382. Amīr al-mu’minīn, peace be upon him, said: Do not say what you do not know; rather do not say all that you know, because Allāh has laid...
Nahj al-Balāgha #170285. Amīr al-mu’minīn, peace be upon him, said: Whoever abandons saying, “I do not know” meets his destruction.