Belief In The Prophets

Hadrat Imam-i Rabbani says in the 17th letter of the third volume of his Maktubat:

Having mercy upon His born slaves, Allahu ta'ala sent them prophets 'alaihim-us-salawatu wa-t-taslimat'. Through them He guided His born servants to the right way, to the way of endless bliss, and called His born servants to Himself. He invited them to Paradise, the place for His consent and love. Man is so poor, but he will not accept the invitation of such a giver of favours, as He is. Man is very stupid and deprives himself of His blessings. All the information which those great people communicated from Allahu ta'ala is true. It is necessary to believe all of it.

Though mind is a means for finding out the truth and what is good, it cannot find it alone, for it is insufficient. It has been completed with the coming of prophets 'alaihim-us-salawatu wa-t-taslimat'. There is no excuse, no pretext left for men. The first of the prophets is Hadrat[1] Adam, and the last one is hadrat Muhammad Rasulullah 'alaihi wa alaihim-us-salawatu wa-t-taslimat'. It is necessary to believe in all the prophets. All of them should be known as innocent (sinless) and true. To disbelieve one of them means to disbelieve all of them. For all of them communicated the same iman. That is, the essentials, the bases of the things to be believed in, were the same in all of their religions. In contrast to one of their wrong credal tenets, Hadrat Isa (Jesus) did not die. When Jews wanted to kill him, Allahu ta'ala raised him alive up to Heaven. At a time towards the end of the world he will descend to Damascus from Heaven and will follow the Shari'at[2] of Muhammad (alaihissalam). Hadrat Khwaja Muhammad Parisa, one of the great Awliya educated by Hadrat Bahaaddin-i Naqshibandi Bukhari, a great Awliya[3], a diver into the ocean of tasawwuf[4], says in his book Fusul-i sitta, "Hadrat Isa will descend from Heaven, will act according to the madhhab[5] of Imam-i Abu Hanifa, will say halal[6] about what he said was halal, and will say haram[7] about what he said was haram."

[1] Hadrat: title of respect used before the names of great people like and Islamic scholars.
[2] Shari'at: (pl. of Shari'a) i) rules and commandments as a whole of the religion. ii) religion.
[3] awliya: (pl. of Wali) a person loved by Allahu ta'ala.
[4] tasawwuf: (Islamic sufism as defined by Islam) knowledge and (after adapting oneself to fiqh) practice of the manners of the Prophet ('alaihi 's-salam) which strengthens iman, makes the practice of fiqh easy and provides one to attain ma'rifa; 'ilm at-tasawwuf. [See the book Maktubat by Ahmad al-Faruqi as-Sirhindi (rahmatullahi ta'ala 'alaih)].
[5] madhhab: all of what a profound 'alim of (especially) Fiqh (usually one of the four-Hanafi, Shafi'i, Maliki, Hanbali) or iman (one of the two, namely Ash-ari, Maturidi) communicated.
[6] halal: (act, thing) permitted in Islam.
[7] haram: an action, word or thought prohibited by Allahu ta'ala.