Dua number 23

سَمِعَ اللهُ لِمَنْ حَمِدَهٗ اَللّٰهُمَّ لَكَ الْحَمْدُ مِلْءَ

samie allh liman hamidahٗ aalllhuma lak alhamd mil '

Allah listens to the one who glorifies Him. O Allah! Glory be to You, (a glory that is) filling

In the book al-Gharat of al-Saqafi: From Obaayah who said: Ameer al-Moameneen (a.s.) wrote to Muhammad ibn Abi Bakr:
Observe your ruku... and when the Holy Prophet (s.a.w.a.) stood from the ruku he (s.a.w.a.) said:

سَمَاوَاتِكَ وَ مِلْءَ اَرْضِكَ وَ مِلْءَ مَا شِئْتَ مِنْ شَيْءٍ.

samawatik wa mil ' aardik wa mil ' ma shit min shay 'in.

Your heavens and filling Your earth and filling up whatever You wish.