The Talbiyah
لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ، لَبَّيْكَ لَا شَرِيكَ لَكَ لَبَّيْكَ، إِنَّ الْحَمْدَ وَالنِّعْمَةَ لَكَ وَالْمُلْكَ، لَا شَرِيكَ لَكَ
Here I am, O Allah, here I am. Here I am; You have no partner; here I am. Indeed all praise, blessing, and dominion are Yours. You have no partner.
Hajj and UmrahSahih al-Bukhari and Sahih Muslim, the Talbiyah of the Prophet, peace be upon him.