Are miracles (karamat) exclusive to the awliya (close friends of Allah)?

Question : They claim that a karamah can occur even for someone who is not a wali, such as an ordinary person. They say this is a gift from Allah (Mighty and Majestic) that He gives to whom He wills. We have heard this from more than one person, even from among the scholars.

Answer : Perhaps Allah bestows upon whom He wills of His servants, but the default is that a supernatural event does not occur except to support a truth or to back up one who is in the right. However, perhaps Allah (Glorified and Exalted is He) bestows upon a person and honors him, but you find that he is doing good.
Some people told us in the past, when they used to travel to distant lands by camel, that on one occasion they got lost in a place called al-Dahna, which is all sand in the summer, and that they perished except by the will of Allah. He said, "So I slept, and a person came to me with a vessel containing milk. I drank until I was satisfied, and I woke up refreshed." He said, "This vessel was like the vessel I used to give milk to a neighbor of ours."
in the town, and I used to give this neighbor a vessel of milk every day. The vessel I used to give this neighbor was the one that came to me in the dream, and I drank until I was satisfied. This is a karamah, but it is a reward for the sin, and it is ordinary; he is a camel driver.