Hadithcore
Mishkat al-Masabih, 2447

Abu Bakra reported God’s messenger as saying that the supplications to be used by one who is distressed are, “O God, Your mercy is what I hope for. Do not abandon me to myself for an instant, but put all my affairs in good order for me. There is no god but You.” Abu Dawud transmitted it.

وَعَنْ أَبِي بَكْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «دَعَوَاتُ الْمَكْرُوبِ اللَّهُمَّ رَحْمَتَكَ أَرْجُو فَلَا تَكِلْنِي إِلَى نَفْسِي طَرْفَةَ عَيْنٍ وَأَصْلِحْ لِي شَأْنِي كُلَّهُ لَا إِلَهَ إِلَّا أَنْتَ» . رَوَاهُ أَبُو دَاوُد

References1 variant
In-Book Reference
Book 9, Hadith 216