Surah Al-Mu'minun (The Believers), Verse 2

الَّذِیْنَ هُمْ فِیْ صَلَاتِهِمْ خٰشِعُوْنَ ۟

Allazeena hum fee Salaatihim khaashi'oon

“Those who humble themselves in their prayers;”

Quran 23:2 (Yusuf Ali Translation)