Musnad Ahmad 1153:838

Sulayman ibn Dawud narrated to us, he said: Abd al-Rahman narrated to us, from his father, he said: Urwah said to me, that Aisha said: The Messenger of Allah, may Allah bless him and grant him peace, said on that day: "Let the Jews know that there is latitude in our religion. Indeed, I have been sent with a tolerant Hanifiyyah (monotheism)."