(Sura Ra’d 13:7) Some commentators have said: It means: (O prophet!
(Sura Ra’d 13:7) Some commentators have said: It means: (O prophet!) You are a warner for every people from the divine punishment and are a guide. In this case ‘ Guide’ is connected to ‘ Warner ’ and some commentators have said that it means that you are a warner for the apostates and the transgressors and for every community there is a guide. In this case one phrase will refer to another one, which proves that no period of time remains without an Imam.
According to this explanation there are many traditions among both the Ahle Sunnat and Shias. Hence the Ahle Sunnat have narrated from Ibne Abbas that when this verse was revealed the Holy Prophet (S) said: I am the warner and Ali is the guide. O Ali, the pathfinders will find the path (will be guided) through you. Abul Qasim Haskani has, in book Shawahidut Tanzil quoted Abi Buraida Aslami that the Holy Prophet (S) called for water to make ablution. Ali (a.s.) presented it.
When the Holy Prophet (S) concluded the ablution he caught the hand of Ali (a.s.) and, placing it on his own chest, said: “I am the warner,” Then placed his own hand on the chest of Ali (a.s.) and said: “After me you are the guide for all the people,” and added, “you will provide light to people, you are the sign of guidance and the king of the reciters of Quran and I give witness that you are so.” Imam Muhammad Baqir (a.s.) is quoted in Basairud Darajat through authentic narrations that the Prophet of Allah is ‘Munzir’ (warner) and that, after him, there is a guide from us for every period that guides the people to those things, which the Prophet (S) has brought from Allah.
After the Holy Prophet (S) the first ‘Hadi’ is Ali (a.s.) and after him, the holy Imams will, one after another, be guiding people until Qiyamat. It is authentically quoted from Imam Sadiq (a.s.) that, explaining this very verse, he said that every Imam is a guide for his people among whom he lives.
It is narrated authentically through Imam Baqir (a.s.) that the Holy Prophet (S) is ‘Munzir’ and Ali is ‘Hadi’ and, by Allah, not a guide from us is ever suspended, rather he will always be from us till Qiyamat. It is authentically reported from Imam Sadiq (a.s.) that, explaining this very verse, he said: The Prophet of Allah is Munzir and Ali (a.s.) is Hadi. Then he asked the narrator: Is there any Hadi today among us?
That narrator replied: Why not, may I be sacrificed for you, the Hadi is coming one by one from among you until that (rank) reached you.