when a man from Persia asked him, 'Do you know the Unseen', replied, 'Abu Ja'far (AS) [i.e. Imam al-Baqir] said, 'Knowledge is expounded for us so we know it, and it can be taken away from us so we do not know.' And he said, 'Allah, Mighty and Exalted, entrusted his secret to Gabriel (AS), and Gabriel entrusted it to Muhammad (SAWA), and Muhammad (SAWA) entrusted it to those whom Allah willed.'