Musnad Ahmad 1153:2044

Rawh narrated to us, Shu'bah narrated to us, he said: Sulayman narrated to us, from Khaythamah, from Abu 'Atiyyah, who said: I heard 'Aishah saying: "I truly know how the Talbiyah of the Messenger of Allah, peace and blessings of Allah be upon him, was." He said: Then I heard her reciting the Talbiyah after that: "Labbayk Allahumma Labbayk, Labbayk la sharika laka Labbayk, inna al-hamda wa an-ni'mata laka" (Here I am, O Allah, here I am; here I am, You have no partner, here I am; indeed, all praise and grace are Yours). My father said: The name of Abu 'Atiyyah is Malik ibn Abi Humrah.