Musnad Ahmad 1153:1231

Abu al-Nadr narrated to us, Ishaq bin Sa'id narrated to us, from his father, from 'Aishah, that the Prophet, peace and blessings of Allah be upon him, entered upon her and said: "Were it not that the Quraysh would become insolent, I would have informed them of what they have with Allah, the Almighty and Majestic."