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.
Hasanلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ
There is no power and no strength except with Allah.
Sahihاللَّهُمَّ لَا سَهْلَ إِلَّا مَا جَعَلْتَهُ سَهْلًا وَأَنْتَ تَجْعَلُ الْحَزْنَ إِذَا شِئْتَ سَهْلًا
O Allah, nothing is easy except what You make easy, and You can make difficulty easy if You wish.
Sahihإِنَّمَا أَشْكُو بَثِّي وَحُزْنِي إِلَى اللَّهِ وَأَعْلَمُ مِنَ اللَّهِ مَا لَا تَعْلَمُونَ
I only complain of my anguish and grief to Allah, and I know from Allah that which you do not know.
Sahih