Iʿjāz al-Qurʾān refers to the Qur’an’s extraordinary, inimitable character beyond the ordinary capacities of human composition. Its evidence is not confined to one literary device or one feature of a word.
Several aspects contribute to the discussion: an unprecedented manner of expression, knowledge of earlier communities and laws, reports concerning future events, and an exceptional level of eloquence. Distinguishing these makes the argument clearer.
One listener may perceive a stylistic quality directly, while another type of evidence calls for historical knowledge or close investigation. Sound assessment therefore identifies the kind of evidence being offered.