اعْقِلْهَا وَتَوَكَّلْ
I'qilha wa tawakkal
Tie it (your camel) and then place your trust in Allah.
A man asked: "O Messenger of Allah, should I tie my camel and trust in Allah, or leave it untied and trust in Allah?" He said: "Tie it and trust." The most practical advice on tawakkul ever given. Do your work — study for the exam, prepare the proposal, save money, eat healthy — and THEN trust Allah for the outcome. Tawakkul without effort is laziness wearing a spiritual mask.
Related Du'as
اللَّهُمَّ اكْفِنِي بِحَلَالِكَ عَنْ حَرَامِكَ وَأَغْنِنِي بِفَضْلِكَ عَمَّنْ سِوَاكَ
O Allah, suffice me with what is lawful instead of what is unlawful, and enrich me by Your bounty so I need none besides You.
Hasanاللَّهُمَّ إِنِّي أَسْأَلُكَ مِنْ فَضْلِكَ وَرَحْمَتِكَ فَإِنَّهُ لَا يَمْلِكُهَا إِلَّا أَنْتَ
O Allah, I ask You for Your bounty and mercy, for none possesses them except You.
Hasanاللَّهُمَّ بَارِكْ لَنَا فِي صَاعِنَا وَبَارِكْ لَنَا فِي مُدِّنَا
O Allah, bless us in our sa' (measure) and bless us in our mudd (measure).
Sahihاللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْكَسَلِ وَالْهَرَمِ وَالْمَأْثَمِ وَالْمَغْرَمِ
O Allah, I seek refuge in You from laziness, senility, sin, and debt.
Sahih