وَلَنَبْلُوَنَّكُمْ حَتَّى نَعْلَمَ الْمُجَاهِدِينَ مِنكُمْ وَالصَّابِرِينَ وَنَبْلُوَ أَخْبَارَكُمْ
We will surely test you until We ascertain those of you who wage jihad and those who are steadfast, and We shall appraise your record.
Agha Ali Puya Commentary
Commentary on Quran 47:31
[Pooya/Ali Commentary 47:31] To know who is the mujahid (he who strives in the way of Allah) see commentary of verses mentioned in verse 20, which also points out the deserters who used to abandon the Holy Prophet at the slightest hint of defeat.