Sahih al-Bukhari 126
Sahih al-Bukhari · Book 3: Knowledge · Whosoever left some optional things simply for the fear that some people may not be able to understand them and may fall into something more difficult
Narrated Aswad:
حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُوسَى ، عَنْ إِسْرَائِيلَ ، عَنْ أَبِي إِسْحَاقَ ، عَنِ الأَسْوَدِ ، قَالَ قَالَ لِي ابْنُ الزُّبَيْرِ كَانَتْ عَائِشَةُ تُسِرُّ إِلَيْكَ كَثِيرًا فَمَا حَدَّثَتْكَ فِي الْكَعْبَةِ قُلْتُ قَالَتْ لِي قَالَ النَّبِيُّ صلى الله عليه وسلم " يَا عَائِشَةُ، لَوْلاَ قَوْمُكِ حَدِيثٌ عَهْدُهُمْ ـ قَالَ ابْنُ الزُّبَيْرِ بِكُفْرٍ ـ لَنَقَضْتُ الْكَعْبَةَ فَجَعَلْتُ لَهَا بَابَيْنِ باب يَدْخُلُ النَّاسُ، وَبَابٌ يَخْرُجُونَ " . فَفَعَلَهُ ابْنُ الزُّبَيْرِ .
Ibn Az-Zubair said to me, "Aisha used to tell you secretly a number of things. What did she tell you about the Ka`ba?" I replied, "She told me that once the Prophet (ﷺ) said, 'O `Aisha! Had not your people been still close to the pre-Islamic period of ignorance (infidelity)! I would have dismantled the Ka`ba and would have made two doors in it; one for entrance and the other for exit." Later on Ibn Az-Zubair did the same.