Musnad Ahmad 1153:1157

'Abd al-Razzaq narrated to us, Ma'mar informed us, from al-Zuhri, or someone else, from 'Urwah, from 'Aishah, who said: "Fatimah bint 'Utbah ibn Rabi'ah came to pledge allegiance to the Prophet, may Allah bless him and grant him peace. He took from her the pledge: 'That they will not associate anything with Allah, nor steal, nor commit adultery' [al-Mumtahanah: 12], the verse." She said: "So she placed her hand on her head out of shyness, and the Messenger of Allah, may Allah bless him and grant him peace, was pleased with what he saw of her." 'Aishah said: "Accept it, O woman, for by Allah, we did not pledge allegiance except upon this." She said: "Then yes, indeed." So he accepted her pledge of allegiance based on the verse.