How can you doubt their existence after it has been reported by all Prophets and saints, who are like suns, moons, and stars in our social life? Such people are specialists in this matter, and obviously two specialists in a matter are preferable to thousands of non-specialists. It also is an established [legal] principle that once a matter is confirmed by two persons, its denial by thousands carries no weight. Moreover, how can you doubt the Qur'an, shining like the sun in the Realm of Truths, and the testimony and experiences of Prophet Muhammad, the Sun of Prophethood?

Third fundamental:

The existence of angels and other spirit beings can be established by proving the existence of one angel, because denying (or accepting) the existence of one amounts to denying (or accepting) the species.[1] From the beginning of time, all people of religion have believed in their existence. There is a consensus that some people have seen, conversed with, and related news from angels. If angels did not exist, if one had not been seen, if the existence of one or more had not been established through observation, how could such a general belief continue? If this belief were not based on strong evidence, how could it come down to us despite changing ideas and beliefs and the passage of time? Besides, might not such a religious belief and a consensus of religious scholars be based on an experienced reality originating in countless signs and experiences? So, we can conclude that belief in angels and other spirit beings is based on the experiences that Prophets and godly people have had with them, and that these accounts were narrated by reliable sources.

How can you doubt their existence after it has been reported by all Prophets and saints, who are like suns, moons, and stars in our social life? Such people are specialists in this matter, and obviously two specialists in a matter are preferable to thousands of non-specialists. It also is an established [legal] principle that once a matter is confirmed by two persons, its denial by thousands carries no weight. Moreover, how can you doubt the Qur'an, shining like the sun in the Realm of Truths, and the testimony and experiences of Prophet Muhammad, the Sun of Prophethood?

Although establishing the existence of one individual proves the existence of the species of spirit beings, the best, as well as the most rational and acceptable way of establishing their existence, is expounded by the Shari‘a, described by the Qur'an, and witnessed by the one who performed the Ascension.

[1]Consider this: The testimony of two people to the existence of any member of a species establishes the whole species' existence, whereas the denial of something's existence depends upon its being unknown to all people at all times. (Tr.)

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