77. Surah Al-Mursalat (المرسلات), the 77th chapter of the Qur'an, is a powerful Makkan Surah consisting of 50 verses. Its title translates to "The Winds Sent Forth", "Those Sent Forth", or "The Emissaries". It is the final Surah of the 29th Juz (part) of the Qur'an and acts as a thunderous, rhythmic closing argument on the absolute certainty of the Day of Judgment. The Surah is famous for its intense, driving poetic rhythm and its chilling, ten-fold repetition of a single, haunting refrain: "Woe, that Day, to the deniers!"