كتاب الفتن وأشراط الساعة
54  
The Book of Tribulations and Portents of the Last Hour
(2)
Chapter: The Earth Swallowing Up The Army That Aims To Attack The Ka'bah
(2)
باب الْخَسْفِ بِالْجَيْشِ الَّذِي يَؤُمُّ الْبَيْتَ
Sahih Muslim 2882 b

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.
حَدَّثَنَاهُ أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ رُفَيْعٍ، بِهَذَا الإِسْنَادِ وَفِي حَدِيثِهِ قَالَ فَلَقِيتُ أَبَا جَعْفَرٍ فَقُلْتُ إِنَّهَا إِنَّمَا قَالَتْ بِبَيْدَاءَ مِنَ الأَرْضِ فَقَالَ أَبُو جَعْفَرٍ كَلاَّ وَاللَّهِ إِنَّهَا لَبَيْدَاءُ الْمَدِينَةِ ‏.‏
Reference : Sahih Muslim 2882b
In-book reference : Book 54, Hadith 7
USC-MSA web (English) reference : Book 41, Hadith 6887
  (deprecated numbering scheme)