"While the people were in Quba', praying the Subh prayer, someone came to them and said that revelation had come to the Messenger of Allah ﷺ the night before, and he has been commanded to face the Ka'bah. So they turned around, and they has been facing toward Ash-Sham, but now they turned to face toward the Ka'bah." (Using translation from Nasāʾī 493)
بَيْنَمَا النَّاسُ بِقُبَاءَ فِي صَلَاةِ الصُّبْحِ إِذْ جَاءَهُمْ آتٍ فَقَالَ لَهُمْ «إِنَّ رَسُولَ اللَّهِ ﷺ قَدْ أَنْزَلَ عَلَيْهِ اللَّيْلَةَ قُرْآنٌ وَقَدْ أُمِرَ أَنْ يَسْتَقْبِلَ الْكَعْبَةَ فَاسْتَقْبِلُوهَا وَكَانَتْ وُجُوهُهُمْ إِلَى الشَّامِ فَاسْتَدَارُوا إِلَى الْكَعْبَةِ»