Surah Al-Jinn — Ayah 24 (72:24)
حَتَّىٰٓ إِذَا رَأَوۡاْ مَا يُوعَدُونَ فَسَيَعۡلَمُونَ مَنۡ أَضۡعَفُ نَاصِرٗا وَأَقَلُّ عَدَدٗا ٢٤
English translation (Saheeh International)
[The disbelievers continue] until, when they see that which they are promised, then they will know who is weaker in helpers and less in number.
Brief commentary
The disbelievers will persist in their disbelief until when they see on the day of judgment the punishment that they were warned of in the world. At that time, they will come to know who has the weaker protector and they will come to know who has less helpers.