لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ، لَبَّيْكَ لاَ شَرِيكَ لَكَ لَبَّيْكَ، إِنَّ الْحَمْدَ، وَالنِّعْمَةَ، لَكَ وَالْمُلْكَ، لاَ شَرِيكَ لَكَ

I am here at Your service, O Allah, I am here at Your service. I am here at Your service, You have no partener, I am here at Your service. Surely the praise, and blessings are Yours, and the dominion. You have no partener.

Labbayk Allaahumma labbayk, labbayk laa shareeka laka labbayk, 'innal-hamda, wanni'mata, laka walmulk, laa shareeka laka.

Al-Bukhari, Muslim 2/841.