Khalid bin Mahran al-Hadha' خالد بن مهران الحذاء · The Book on Traveling

"When the Messenger of Allah would prostrate (for recitation of) the Qur'an, he would say: (Sajada wajhiya lilladhi khalaqahu wa shaqqa sam'ahu wa basarahu bihawlihi wa quwwatihi.) (I have prostrated my face to the One Who created it, and made its hearing and vision, though His ability and power.)"