51:36
فَمَا وَجَدْنَا فِيهَا غَيْرَ بَيْتٍۢ مِّنَ ٱلْمُسْلِمِينَ ٣٦
Saheeh International
And We found not within them other than a [single] house of Muslims.
Tafsir of "Ibn Kathir" (English)
But We found not there any household of the Muslims except one.Allah the Exalted said,وَتَرَكْنَا فِيهَا ايَةً لِّلَّذِينَ يَخَافُونَ الْعَذَابَ الاَْلِيمَ