رَبِّ هَبْ لِي مِن لَّدُنكَ ذُرِّيَّةً طَيِّبَةً ۖ إِنَّكَ سَمِيعُ الدُّعَاءِ

Rabbi hab lee mil-ladunka zurriyyatan tayyibatan innaka Samee'ud-du'aaa'.

My Lord, grant me from Yourself a good offspring. Indeed, You are the Hearer of supplication.

Reference: Surah Ali-Imran 3:38