.Secret in Dua of Musa A.S.

بِسْــــــــــــــــــمِ اﷲِالرَّحْمَنِ اارَّحِيم

السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ

فَسَقَىٰ لَهُمَا ثُمَّ تَوَلَّىٰ إِلَى الظِّلِّ فَقَالَ رَبِّ إِنِّي لِمَا أَنزَلْتَ إِلَيَّ مِنْ خَيْرٍ فَقِيرٌ

So he watered (their flocks) for them; then he turned back to the shade, and said:
"O my Lord! truly am I In (desperate) need of any good that Thou dost send me!"

( سورة القصص , Al-Qasas, Chapter #28, Verse #24)