Shortest and Best Dua : Protection from all harms

 اللَّهُمَّ إِنِّي أَسْأَلُكَ الْعَافِيَةَ 

"ALLAHUMMA INNI AS' ALUKA AL' AFIYAH

“O Allah, I ask You to be saved from any Distress, Grief, Hardship, Harm, and don't test me, etc.”

Shortest and Best prayer

Short dua for stress, tension, sadness, depression, grief, worries, anxiety