56:73.24
Muhammad Asad Commentary & Translation
Inasmuch as "fire" (in the widest sense of this word) is the source of all light known to man, it is apt to remind him that "God is the light of the heavens and the earth" (see 24:35 and the corresponding notes).
Translation
(56:73) It is We who have made it a means to remind [you of Us], [24] and a comfort for all who are lost and hungry in the wilderness [of their lives].