Fortress of the Muslim (Hisn al-Muslim)
حصن المسلم
(115) Chapter: The Talbiya for the one doing Hajj or 'Umrah
(115) كيف يلبي المحرم في الحج أو العمرة
Hisn al-Muslim 233 
Labbayk-Allāhumma labbayk, labbayka lā sharīka laka labbayk, inna ‘l-ḥamda, wanni`mata, laka wa ‘l-mulk, lā sharīka lak. 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. Reference: Al-Bukhari, cf. Al-Asqalani, Fathul-Bari 3/408, Muslim 2/841.
لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ، لَبَّيْكَ لاَ شَرِيكَ لَكَ لَبَّيْكَ، إِنَّ الْحَمْدَ والنِّعْمَة لَكَ والمُلْكُ، لَا شَرِيكَ لَكَ
Reference : Hisn al-Muslim 233