Musnad Ahmad 1153:2337

Ya'qub narrated to us, he said: My father narrated to us, from Ibn Ishaq, he said: Yahya ibn 'Abbad ibn 'Abdullah ibn al-Zubayr narrated to me, from 'Aisha, the wife of the Prophet, may Allah bless him and grant him peace, she said: I heard the Messenger of Allah, may Allah bless him and grant him peace, saying: "Whoever performs a prayer in which he does not recite the Mother of the Qur'an, it is deficient."