Fruits of Revelation

2.4 And who believe in that which has been sent down (unzilna) to you and that which was sent down (unzilna) before you and they are sure of the hereafter.

2.22 Who made the earth a resting place for you and the heaven a canopy and (Who) sends down (anzala) water from the cloud, then brings forth there in (of) the fruits; therefore do not set up rivals to Allah while you know.

2.23 And if you are in doubt as to that which We have sent down (nazzalna) to Our servant, then produce a chapter like it and call on your witnesses besides Allah if you are truthful.

2.25 And convey good news to those who believe and do good deeds, that they shall have gardens in which rivers flow; whenever they shall be given a portion of the fruit thereof, they shall say: This is what was given to us before; and they shall be given the like of it, and they shall have pure mates in them, and in them, they shall abide.

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The fruits are not only visible actual fruits but as stated in 2.4, it is also revelation.