A. Yusuf Ali:Translation:
Except such as snatch away something by stealth,
and they are pursued by a flaming 4039 fire, of
piercing brightness.

Muhammad Asad:Translation:
but if anyone 5 does succeed in snatching a glimpse [of such knowledge], he is [henceforth] pursued by a piercing flame. 6
4039 See last note and Cf. 15:18 and notes 1953-54.