It follows from this verse that Prophets can see some of the Unseen, and so do the saints (wali, pl. awliya’) that follow each particular Prophet also, as each takes from his Prophet and is gifted (yukram) with his knowledge. The difference between the two is that the Prophet looks at this knowledge through all kinds of revelation, while the saint does not look upon it except in dreams or through inspiration, and Allah knows best.

(ath al-bari (1989 ed. 8:660) tafsir surat Luqman, “Allah has knowledge of the Hour” (31:34))

Ibn Hajar quotes al-Qurtubi’s words confirming this:

The truthful, righteous Muslim (al-muslim al-sadiq al-salih) is he whose state matches that of Prophets and thereby is bestowed (ukrima) some of the same kind of gifts they were given: that is to behold the unseen (wa huwa al-ittila` `ala al-ghayb). As for the disbeliever (al-kafir), the corrupt person (al-fasiq), and the contentious one who confuses matters for the listeners (al-mikhlat)– then no.

( al-Qurtubi as quoted by Ibn Hajar in Fath al-bari (1989 ed.) 12:449.)

http://ahlussunnahwaljamah.blogspot.com/2009/01/miacles-of-ibn-taymiyya.html