Abdullah bin Umar (may Allah be pleased with him) says that the talbiyah of the Messenger of Allah (peace and blessings be upon him) was as follows: 'Labbayk Allahumma labbayk, labbayk la sharika laka labbayk, inna al-hamda wa al-ni'mata laka wa al-mulk, la sharika lak' (Here I am, O Allah, here I am; here I am, You have no partner, here I am. Indeed, all praise and blessing are Yours, and the dominion; You have no partner). And Abdullah bin Umar (may Allah be pleased with him) used to add to it: 'Labbayk labbayk wa sa'dayk, wa al-khayru bi-yadayk, labbayk wa al-raghba'u ilayka wa al-'amal' (Here I am, here I am, at Your service; all good is in Your hands; here I am, and all longing and deeds are directed to You).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9026