The first ten verses of Surah 91 form one of the longest, most structurally uniform oath sequences in the entire Quran, utilizing short, punchy rhyming couplets that all conclude with the identical feminine pronominal suffix hā (ḍuḥāhā, talāhā, jalāhā, yaghshāhā).
The Polytheistic Precedent: To a secular philologist or structural linguist, this precise literary architecture is completely continuous with the ancient Saj' prose style of pre-Islamic Arabia. This specific cadence was the exclusive professional trademark of the pagan Kahin class (soothsayers and tribal shamans).
Pagan oracles routinely deployed these long, rhythmic, rapid-fire environmental associations to induce a state of heightened emotional tension and awe in their audience before delivering an edict. The author of the Quran co-opts this familiar, tranced-out desert performance art verbatim. By utilizing the exact acoustic aesthetics of local sorcery, the text attempts to capture the psychological authority of traditional oracle culture to validate its own theological claims about the soul (v. 9–10).