Al-Isra states that if humankind and jinn banded together to produce the like of the Quran, 'they could not produce the like of it, even if they helped one another' (17:88), one of several such challenge verses scattered across the Quran and cited by Islamic theology as the scriptural basis for the doctrine of i'jaz al-Quran, the Quran's inimitability, understood as a standing proof of its divine origin rather than human composition. Classical and later theological writing built an extensive literature specifically around this doctrine, analysing the Quran's language, structure and rhetorical form as evidence for a claim the surah itself states as an open, unmet challenge.
Al-Isra's compact ethical code, honouring parents even to avoid 'a word of contempt' toward them in old age (17:23-24), is frequently excerpted in devotional and educational literature independently of the surah's frame narrative concerning the night journey, treated as a self-contained statement of core Quranic ethics comparable in scope, though not in form, to summary ethical codes found in other scriptural traditions. The challenge remains, in later Islamic apologetic literature, framed as still standing today, addressed to any generation rather than only to the Quran's first audience.