Musnad Abu Ya'la al-Mawsili 150:39

Ishaq narrated to us, Abdullah bin Maslamah bin Qa'nab narrated to us, Malik bin Anas narrated to us, from Abd al-Rahman bin al-Qasim, from his father, from Aisha, that the Messenger of Allah (may Allah bless him and grant him peace) performed Hajj exclusively (Ifrad).