A brief explanation of the above passage will be given here, for there are precise details together with the chains of authorities in the end section of The Miracles of Muhammad, in Zülfikâr.
It is recorded with sound narrations, and in part with unanimous reports, in the histories and books of Hadith and the Prophet’s biography that among the most prominent and famous of mankind in past times, foremost the prophets and the gnostics, soothsayers, and ‘voices from the Unseen’ foretold Muhammad’s (PBUH) messengership and coming unanimously, explicitly and repeatedly in the form of irhasat. Since the most powerful and certain of those thousands of predictions are described in detail in The Miracles of Muhammad, we refer you to that and here only say by way of a brief indication: out of hundreds in the revealed scriptures of the Torah, Gospels, and Psalms, brought by the prophets, twenty verses about the prophethood of Muhammad (PBUH) which are close to being explicit are written in the Nineteenth Letter (The Miracles of Muhammad). While Husayn al-Jisri found a hundred verses about Muhammad’s prophethood, despite the numerous corruptions in their texts made by Jews and Christians, and wrote them in his book.1
According to a sound narration concerning which were unanimous reports, the soothsayers, and foremost Shiqq and Satih, who by means of jinns and spirit beings gave information about the Unseen and are now called mediums, foretold explicitly the coming of God’s Messenger (PBUH) and that he would wipe out the Persian Empire. They stated repeatedly in a way that could not be doubted that a prophet was shortly to appear in the Hijaz.
Similarly, Ka‘b ibn Lu’ayy, one of the Prophet’s forefathers and a gnostic, and many other gnostics and the saints of that time such as the rulers of Yemen and Abyssinia, Sayf ibn Dhi Yazan and Tubba, foretold clearly Muhammad’s (PBUH) messengership, and proclaimed it in their poetry. The most important and certain of these are included in the Nineteenth Letter. One of those kings even said: “I would choose to be Muhammad’s (PBUH) servant in preference to ruling this kingdom.” Another said: “If I had lived to see him, I would have been his cousin.” That is, I would have been a devoted servant and minister of his like ‘Ali (May God be pleased with him). The histories and books of biography have published all these prophecies, showing that the gnostics affirmed Muhammad’s (PBUH) messengership and veracity with a powerful, universal testimony.
Husayn al-Jisri, al-Risalat al-Hamidiyya [Turk. trans. Manastırlı Ismail Hakkı], Istanbul 1308, 4 vols.