13لِيَومِ الفَصلِMuhammad AsadFor the Day of Distinction [between the true and the false]!1This is chronologically the earliest occurrence of the expression yawm al-fasl, which invariably relates to the Day of Resurrection (cf. 37:21, 44:40, 78:17, as well as verse 38 of the present surah): an allusion to the oft-repeated Qur'anic statement that on resurrection man will gain a perfect, unfailing insight into himself and the innermost motivation of his past attitudes and doings (cf. 69:1 and the corresponding note 1).