قُلْ يَوْمَ ٱلْفَتْحِ لَا يَنفَعُ ٱلَّذِينَ كَفَرُوٓا۟ إِيمَٰنُهُمْ وَلَا هُمْ يُنظَرُونَ
10:103; 11:123.
Commentary:
"The day of victory" mentioned in this verse is the day of the Battle of Badr. That day has also been called the Day of Decision in the Quran (8:42) because on that day God gave His judgement which the disbelievers had sought in the words: "O Allah, if this be indeed the truth from Thee, then rain down upon us stones from heaven or bring down upon us a grievous punishment" (8:33).
The day of the Battle of Badr which has also been called the Day of Decision (8:42).