Was there any way that he could learn about this? Well, not from a human standpoint; no man could instruct him about it because no one had been in heaven and thus in a position to explain anything about getting into the Kingdom. The only exception was Jesus.
فما من انسان على الارض كان يستطيع ان يجعله يفهم هذه النقطة ،‏ إذ لم يصعد احد الى السماء ليتمكن من ايضاح مسألة الدخول الى الملكوت .‏