Surah 15. Al-Hijr, Ayah 18

Lit., "excepting [or "except that"] anyone who seeks to hear by stealth...", etc. The implication seems to be that any attempt at fathoming the mysteries of the unknowable by such illicit means ("by stealth") is inevitably followed by "a flame clear to see", i.e., by burning, self-evident frustration. (Cf. also 37:10 .)

 Some jinn used to eavesdrop on the angels in heaven so they could disclose this information to their human associates. But this practice came to an end when the Prophet (ﷺ) was sent with the message of Islam. See 72:8-10.

Cf. lxxii. 8-9.

A shooting star. Cf. xxxvii. 10.