Sahih Muslim
The Book Pertaining to the Turmoil and Portents of the Last Hour (Kitab Al-Fitan wa Ashrat As-Saah)
Book Number: 041 / Hadith Number: 6887
This hadith has been narrated on the authority of 'Abdullah b. Rufai, with the same chain of transmitters (but with the addition of these words):" When I met Abu Ja'far I told him that she (simply) meant the plain ground. Thereupon Abu Ja'far said: No, by God, she meant the plain ground of Medina.