Hadithcore
Sahih Muslim, 528 c
sahih

'A'isha reported:

The wives of the Messenger of Allah (may peace be Upon him) made a mention of the church which they had seen in Abyssinia which was called Marya, and the rest of the hadith is the same.

حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، حَدَّثَنَا هِشَامٌ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ ذَكَرْنَ أَزْوَاجُ النَّبِيِّ صلى الله عليه وسلم كَنِيسَةً رَأَيْنَهَا بِأَرْضِ الْحَبَشَةِ يُقَالُ لَهَا مَارِيَةُ ‏.‏ بِمِثْلِ حَدِيثِهِمْ ‏.‏

References2 variants
In-Book Reference
Book 5, Hadith 23
USC-MSA web (English) reference
Book 4, Hadith 1078 (deprecated numbering scheme)