He replied...
He replied: The same wisdom that was behind the occultation of divine proofs before him. Indeed the wisdom behind the occultation of His Eminence will not be known except after his reappearance just as the wisdom behind the actions of Khizr (a.s.) of making a hole in the boat, killing the boy and repairing the wall were not clear to Prophet Musa till the time of the parting of their ways.
O son of Fadl, this matter (of occultation) is a matter of Allah the Almighty and is one of the divine secrets from the unseen of God.
And since we know that the Almighty Allah is All-Wise, we testify that all His actions and words are based on wisdom even though their causes may not be clear for us.” 5- Ikmaaluddin & Ilalush Sharai: It is narrated from Ibne Abdus from Ibne Qutaibah from Hamadan bin Sulaiman from Muhammad bin Husain from Ibne Mahbub from Ali bin Raab from Zurarah that he said: I heard Imam Muhammad Baqir (a.s.) say: “There is an occultation for the Qaim before his reappearance.” I asked: “Why is it so?” He replied: “He is fearful.” And he pointed towards his belly, implying that the Qaim fears for his life.
6- Amali Saduq: Sinani has narrated from Ibne Zakariya from Ibne Habib from Fadhl bin Saqar from Abu Muawiyah from Amash from Imam Ja’far Sadiq (a.s.) that he said: “Since the Almighty Allah created Adam (a.s.), He has not left the world without His Proof, whether it be apparent and well known or hidden and concealed; and neither will He leave it without His Proof.
If it had been so, the Almighty Allah would never have been worshipped.” Sulaiman asked: “Then how can people benefit from a hidden proof?” He replied: “Like they benefit from the sun when it is concealed behind the clouds.” 7- Ihtijaaj: It is narrated from Kulaini from Ishaq bin Yaqub that he said: “I asked Muhammad bin Uthman Amari (r.a.) to write to the Imam a letter containing questions that were difficult for me.