Qatada said God most high created these stars for three purposes; He made them an adornment for the sky, missiles for the devils, and signs by which people find their way. If anyone explains them differently he makes a mistake, squanders what is allotted to him, and occupies himself with something he does not know. Bukhari transmitted it without a full isnad. Razln’s version has,“occupies himself with what does not concern him, what he has no knowledge of, and what prophets and angels are incapable of knowing.”