حَسْبُنَا اللَّهُ وَنِعْمَ الْوَكِيلُ
Transliteration
Hasbunallahu wa ni'mal-wakil
English meaning
Allah is sufficient for us, and what an excellent Trustee He is.
When is it recited?
In fear, worry, and anxiety.
Its virtue
Recited by Ibrahim when thrown into the fire and by the Prophet at Badr.
Source
Al-i Imran 3/173