According to search-discovered classical Islamic scholarship, the 'pall of smoke' (Ad-Dukhan) mentioned in Quran 44:10 is a profound divine sign with two primary interpretations. The first, famously narrated by the companion Abdullah ibn Mas'ud, posits that this was a past event—a severe famine that afflicted the Quraysh, causing them to see a smoke-like haze due to extreme hunger. This served as a localized punishment and a warning. In contrast, the second interpretation, supported by other companions like Ali ibn Abi Talib and Ibn Abbas, and strengthened by prophetic traditions, identifies the Dukhan as one of the ten major signs of the Hour. This future event is described as a literal, pervasive smoke that will envelop the earth, affecting believers mildly like a cold but causing grievous torment to disbelievers. Tafsir authorities like Ibn Kathir present both views, with many scholars reconciling them by suggesting that a minor smoke has passed, while the major eschatological smoke is yet to come, thus fulfilling the Quranic warning on multiple levels.