There are many more examples like these, which have been accepted as authentic and narrated in reliable books.

And just as soothsayers, gnostics, invisible jinns, and even idols and sacrifices told of Muhammad’s (PBUH) messengership, and each instance was the cause of people coming to believe in him, so too inscriptions on stones over and in graves, and on gravestones, like “Muhammad, a worker of righteousness, the trustworthy,” were the means of some people coming to believe.(364) Because, in the time shortly before Muhammad lived, there were only seven men bearing that name, and not one of them deserved the epithet of righteous and trustworthy.(365)

THE THIRD KIND

These are irhasat including the wondrous events which occurred at the time of, and in conjunction with, the birth of God’s Noble Messenger (Upon whom be blessings and peace). There were also events that occurred before his prophetic mission which were miracles.

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(364) Qadi Iyad, al-Shifa: i, 467; ‘Ali al-Qari, Sharh al-Shifa: i, 467; ‘Ali al-Qari, Sharh al-Shifa: i, 749; Halabi, al-Sirat al-Halabiya i, 354.
(365) Halabi, al-Sirat al-Halabiya i, 131-4.