People go everywhere looking for the right supplication when life gets hard, when an exam is tomorrow, when the rizq feels tight, when a child needs help. The Quran already taught them. These are the ones the prophets used themselves — Arabic, transliteration, English meaning, and the moment each one fits.
When everything feels too heavy
Before a test, a lecture, a book
When you've been given something
When the rizq feels tight
For spouse, children, the home
After a slip, before a slip
When you don't see the way forward
Interviews, meetings, hard conversations
When the road is long
The dua the Prophet ﷺ said most often
From evil eye, harm, jinn, the night
Leaving the house, on the road
For yourself or someone you love
Before bed, through the night
"And when My servants ask you, [O Muhammad], concerning Me — indeed I am near. I respond to the invocation of the supplicant when he calls upon Me."