Part of verse 173 of Surah Ali 'Imran, a declaration of complete reliance on Allah.
It means 'Allah is sufficient for us, and He is the best Disposer of affairs.' The verse records how the believers responded when people tried to frighten them: their faith only grew stronger. It is a well-loved supplication for moments of fear, pressure, or worry.
- 3:173
ٱلَّذِينَ قَالَ لَهُمُ ٱلنَّاسُ إِنَّ ٱلنَّاسَ قَدْ جَمَعُوا۟ لَكُمْ فَٱخْشَوْهُمْ فَزَادَهُمْ إِيمَٰنًۭا وَقَالُوا۟ حَسْبُنَا ٱللَّهُ وَنِعْمَ ٱلْوَكِيلُ
Allazeena qaala lahumun naasu innan naasa qad jama'oo lakum fakhshawhuin fazaadahum eemaannanwa wa qaaloo hasbunal laahu wa ni'malwakeel
Certes ceux auxquels l'on disait: «Les gens se sont rassemblés contre vous; craignez-les» - cela accrut leur foi - et ils dirent: «Allah nous suffit; Il est notre meilleur garant».