Musannaf Ibn Abi Shayba 27:890

Ubayd Allah narrated to us, he said: Musa ibn Ubaydah informed us, from Dawud ibn Mudrik, from Urwah ibn al-Zubayr, from Aisha, she said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "A prayer in this mosque of mine is better than a thousand prayers in other than it from the mosques, except for the Sacred Mosque (al-Masjid al-Haram)."