حَسْبُنَا اللَّهُ وَنِعْمَ الْوَكِيلُ
HasbunAllahu wa ni'mal-Wakil
Allah is sufficient for us, and He is the best Disposer of affairs.
This was said by Prophet Ibrahim (AS) when he was thrown into the fire by his people, and by the Companions at the Battle of Uhud when they were told "a great army has gathered against you, so fear them." Instead of panicking, they said these words — and Allah turned the threat into safety and increased them in faith.
Related Du'as
اللَّهُمَّ لَا تَجْعَلْ مُصِيبَتَنَا فِي دِينِنَا وَلَا تَجْعَلِ الدُّنْيَا أَكْبَرَ هَمِّنَا وَلَا مَبْلَغَ عِلْمِنَا
O Allah, do not make our calamity in our religion, and do not make this world our greatest concern or the extent of our knowledge.
Hasanاللَّهُمَّ اجْعَلْ لِي مِنْ كُلِّ هَمٍّ فَرَجًا وَمِنْ كُلِّ ضِيقٍ مَخْرَجًا وَارْزُقْنِي مِنْ حَيْثُ لَا أَحْتَسِبُ
O Allah, grant me relief from every worry, a way out from every difficulty, and provide for me from where I do not expect.
Hasanلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ
There is no power and no strength except with Allah.
Sahihاللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْهَمِّ وَالْحَزَنِ وَأَعُوذُ بِكَ مِنَ الْعَجْزِ وَالْكَسَلِ وَأَعُوذُ بِكَ مِنَ الْجُبْنِ وَالْبُخْلِ وَأَعُوذُ بِكَ مِنْ غَلَبَةِ الدَّيْنِ وَقَهْرِ الرِّجَالِ
O Allah, I seek refuge in You from worry and grief, I seek refuge in You from incapacity and laziness, I seek refuge in You from cowardice and miserliness, and I seek refuge in You from being overcome by debt and overpowered by men.
Sahih