Al-Qasas 28:24
فَسَقَىٰ لَهُمَا ثُمَّ تَوَلَّىٰٓ إِلَى ٱلظِّلِّ فَقَالَ رَبِّ إِنِّى لِمَآ أَنزَلْتَ إِلَىَّ مِنْ خَيْرٍ فَقِيرٌ
Fasaqa lahuma thumma tawallaila aththilli faqala rabbiinnee lima anzalta ilayya min khayrin faqeer
"So he watered [their flocks] for them; then he went back to the shade and said, "My Lord, indeed I am, for whatever good You would send down to me, in need.""
Al-Qasas 28:24, translation by Sahih International
A short reflection
My Lord, indeed I am, for whatever good You would send down to me, in need. The dua of Musa under the tree.