I am here at Your service, O Allah, I am here at Your service. I am here at Your service, You have no partner, I am here at Your service. Surely the praise, and blessings are Yours, and the dominion. You have no partner.
لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ ، لا شَرِيكَ لَكَ لَبَّيْكَ ،إنَّ الْحَمْدَ ،وَالنِّعْمَةَ ،لَكَ وَالْمُلْكُ ، لا شَرِيكَ لَكَ
Labbayk Allaahumma labbayk, labbayk laa shareeka laka labbayk, ‘innal-hamda, wanni’mata, laka walmulk, laa shareeka laka
Al-Bukhari, cf. Al-Asqalani, Fathul-Bari 3/408, Muslim 2/841
