Yawm al-Hisab (the Day of Account) is one of the primary names for the Day of Judgment in the Quran, emphasizing that every human being will stand before Allah and be held accountable for their deeds. The Quran declares: "This Day every soul will be recompensed for what it earned. No injustice today. Indeed, Allah is swift in account" (40:17). On this day, each person's complete record of actions,every word, deed, intention, and thought,will be presented with perfect accuracy. The books of deeds (suhuf) will be distributed: the righteous receiving theirs in the right hand, the wicked in the left or behind their back. Allah's questioning will be comprehensive yet perfectly just, with nothing omitted. The Prophet (peace be upon him) taught that on Yawm al-Hisab, no one will move until asked about four things: their life and how they spent it, their knowledge and how they acted upon it, their wealth and how they earned and spent it, and their body and how they used it (Tirmidhi). Even the smallest deeds,an atom's weight of good or evil,will be accounted for (99:7-8). Yawm al-Hisab balances Allah's mercy with justice; while He may forgive whom He wills, the accounting itself is certain. Belief in this day shapes Muslim ethics, encouraging accountability, repentance, and righteous action. It assures the oppressed that justice will ultimately prevail and warns oppressors that they cannot escape divine reckoning. Yawm al-Hisab transforms human existence from meaningless passage to profoundly significant moral journey.