Dr. Mustafa Khattab, the Clear Quran - Surah Al-Jinn, ayah 24

Translation of Surah Al-Jinn, ayah 24 (72:24)

حَتَّىٰٓ إِذَا رَأَوۡاْ مَا يُوعَدُونَ فَسَيَعۡلَمُونَ مَنۡ أَضۡعَفُ نَاصِرٗا وَأَقَلُّ عَدَدٗا ٢٤
Only when they see what they have been threatened with will they know who is weaker in helpers and inferior in manpower.