Prohibition on Speaking without Knowledge.

4. A number of our people has narrated has narrated from Ahmad ibn Muhammad ibn Khalid from al-Hassan ibn Ali al-Washshi’ from Aban al-Ahmar from Ziyad ibn abu Raja’ from abu Ja’far عليه السلام who has said the following. “What you know you may speak it up but what you do not know say, ‘Allah knows best’. A man refers to a verse in the holy Quran and gives it a meaning that is farther from the truth than the heavens are from earth.”