Musnad Ahmad 1153:31

Muhammad ibn Fudayl narrated to us, he said: Al-A’mash narrated to us, from ‘Umarah ibn ‘Umayr, from Abu ‘Atiyyah, he said: ‘Aishah said: "I truly know how the Messenger of Allah, may Allah bless him and grant him peace, used to recite the Talbiyah." He said: Then I heard her reciting the Talbiyah, saying: "Labbayk Allahumma Labbayk, Labbayka la sharika laka Labbayk, inna al-hamda wa an-ni’mata laka wa al-mulk, la sharika lak." (Here I am, O Allah, here I am. Here I am, there is no partner for You, here I am. Indeed, all praise and grace are Yours, and the dominion; there is no partner for You.)