Sura Qasas (The Stories) ayah 5 "And We desired to bestow a...
Sura Qasas (The Stories) ayah 5 "And We desired to bestow a favor upon those who were deemed weak in the land, and to make them the Imams, and to make them the heirs" Imam Jafar Sadiq (as) said, "This ayah was revealed for Ameerul Momineen (asws)" (Biharul Anwar vol 24 pg 168) ayah 35 "We shall appoint a sultan for the both of you and Firoan and his followers will not be able to reach you because of Our Signs." "After Musa (as) and Haroon (as) received the orders of Allah to preach to Firoan, they started o ff towards the court of Firoan.
Both of them were extremely frustrated and worried as to how they would be treated by Firoan. Along the way, they saw a rider approaching them. He was wearing a dress adorned with gold and silver stitching and holding a swor d made of gold. He said to them, "Follow Me. Do not have any fear." This rider reached the court of Firoan and said, "Obey these two prophets. If you do not, I will kill you." Upon hearing these words, Firoan became so frightened. Then this rider disappeared.
Firoan asked Hz Musa (as) and Haroon to come to his court the next day and say whatever it was they wished to say. When Musa (as) and Haroon (as) left, Firoan asked his guards, "Why did you allow this rider to enter without my permission?" The guards r eplied, "We swear by your honor, we did not see any rider. We only saw these two brothers." That rider was Ameerul Momineen Ali (as) ibn Abi Talib (as).
Allah hiddenly helped all the prophets through Ali (as) and openly helped Muhammad (saw) through Ali (as). Moula Ali (as) is that great Kalim ul Kubra (greatest word of Allah) which Allah sent in order to help His prophets in every age and in various forms. Ali (as) always was a helper to the prophets, messengers, and friends of Allah. All the prayers of the prophets, messengers and friends of Allah were accepted through Moula Ali (as).
All of their problems, difficulties, and sufferings were removed through Moula Ali (as). This ayah of Quran refers to that incident; "We shall appoint a sultan for the both of you and Firoan and his followers will not be able to reach you because of Our Signs." Ibne Abbas (ra) narrates that rider was Ayatul Kubra (greatest sign) and Sultan for them.