Stated in the first person, plainly
Not if, but until.
وَلَنَبْلُوَنَّكُمْ حَتَّىٰ نَعْلَمَ ٱلْمُجَـٰهِدِينَ مِنكُمْ وَٱلصَّـٰبِرِينَ وَنَبْلُوَا۟ أَخْبَارَكُمْ
Wa la-nabluwannakum ḥattā naʿlama-l-mujāhidīna minkum wa-ṣ-ṣābirīn…
“And We will surely test you until We make evident those who strive among you [for the cause of Allāh] and the patient, and We will test your affairs.”
Source
The Qur'an · 47:31
Qur'an
- Qur'anic text in the Uthmani script via Quran.com; translation: Saheeh International