Sahih Muslim 528
Sahih Muslim · Book 5: The Book of Mosques and Places of Prayer · The prohibition of building masajid over graves and placing images therein; and the prohibition of taking graves as masajid
'A'isha reported:
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 .
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.