At the end of the day, before sleep
A supplication naming Allah as Lord of everything, then asking for two things.
قُولِي اللَّهُمَّ رَبَّ السَّمَوَاتِ السَّبْعِ
Allāhumma Rabba-s-samāwāti-s-sabʿi wa Rabba-l-ʿarshi-l-ʿaẓīm…iqḍi ʿanna-d-dayna wa aghninā mina-l-faqr.
“O Allah, Lord of the seven heavens and Lord of the Magnificent Throne… settle our debt for us and free us from poverty.”
The full narration
Abu Huraira reported that Fatima (the daughter of the Holy Prophet) came to Allah's Apostle (ﷺ) and asked for a servant. He said to her:Say:" O Allah, the Lord of the seven heavens" ; the rest of the hadith is the same
Source
Ṣaḥīḥ Muslim · 6891
Ṣaḥīḥ
- Agreed upon as authentic (al-Bukhārī / Muslim)