I asked Bilal as he came out what Messenger of Allah ﷺ had done there. He said: He prayed there in (such a position) that two pillars were on his left side, one pillar on his right, and three pillars were behind him, and the House at that time was resting on six pillars.
أَنَّ رَسُولَ اللَّهِ ﷺ دَخَلَ الْكَعْبَةَ هُوَ وَأُسَامَةُ وَبِلاَلٌ وَعُثْمَانُ بْنُ طَلْحَةَ الْحَجَبِيُّ فَأَغْلَقَهَا عَلَيْهِ ثُمَّ مَكَثَ فِيهَا قَالَ ابْنُ عُمَرَ فَسَأَلْتُ بِلاَلاً حِينَ خَرَجَ مَا صَنَعَ رَسُولُ اللَّهِ ﷺ قَالَ جَعَلَ عَمُودَيْنِ عَنْ يَسَارِهِ وَعَمُودًا عَنْ يَمِينِهِ وَثَلاَثَةَ أَعْمِدَةٍ وَرَاءَهُ وَكَانَ الْبَيْتُ يَوْمَئِذٍ عَلَى سِتَّةِ أَعْمِدَةٍ ثُمَّ صَلَّى