Surah 37. As-Saffat, Ayah 27

Cf. the contrasting - though verbally identical - passage in verses {50} ff. of the present surah. Whereas in the latter instance the verb yatasa'alun has its primary connotation of "asking one another [about something]", it signifies here "demanding [something] of one another" - as the sequence shows, to assume responsibility for their erstwhile denial of the truth.