لِيَجْزِيَ اللَّهُ كُلَّ نَفْسٍ مَا كَسَبَتْ إِنَّ اللَّهَ سَرِيعُ الْحِسَابِ ﴿۵۱﴾ هَذَا بَلَاغٌ لِلنَّاسِ وَلِيُنْذَرُوا بِهِ وَلِيَعْلَمُوا أَنَّمَا هُوَ إِلَهٌ وَاحِدٌ وَلِيَذَّكَّرَ أُولُو الْأَلْبَابِ ﴿۵۲﴾

﴾51﴿ Liyajziyal laahu kulla nafsim maa kasabat; innal laaha saree'ul hisaab
﴾52﴿ Haaza balaaghul linnaasi wa liyunzaroo bihee wa liya'lamooo annamaa Huwa Illaahunw Waahidunw wa liyaz zakkara ulul albaab

﴾51﴿ So that Allah may recompense every soul for what it has earned. Indeed, Allah is swift in reckoning
﴾52﴿ This (Qur'an) is a message for mankind so that they may be warned by it, and so they may know that He is the only One worthy of worship, and so that those of sound understanding may take heed

[51] In the phrase (سَرِيعُ الْحِسَابِ), there are two interpretations:
1. It means that the Day of Reckoning will arrive quickly—i.e., it is near and approaching soon, even if people feel it's far off.
2. It means that when Allah begins the reckoning, He completes it swiftly and perfectly—unlike human processes, His account-taking is without delay or confusion.
Both meanings reflect Allah’s supreme control and the certainty of the Hereafter.
[52] This verse connects back to the beginning of the surah, and it contains a strong encouragement toward the Qur’an, emphasizing that it is the means of salvation from punishment.
Four key benefits of the Noble Qur’an are mentioned in this verse:
1. It is a message (tablīgh) directed to all people—not limited to a specific group.
2. It serves as a warning (indhār)—especially from divine punishment.
3. It is a source of teaching Tawḥīd (monotheism)—the foundation of faith.
4. It is a reminder (dhikrā) specifically for those who possess intellect and understanding.
The verse also explicitly affirms that the central theme of the Qur’an is Tawḥīd—calling people to the oneness of Allah and guiding them to the straight path.