[Machine] The Messenger of Allah ﷺ used to raise his gaze to the sky when he prayed, and a verse would be revealed to him. I do not know which verse it was, but Muhammad ibn Sirin liked his gaze during prayer to not go beyond his place of prayer. This is the preserved and transmitted narration. It has been narrated from Ismail ibn Ibrahim, who is the son of Aliyyah, in a connected narration.  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ إِذَا صَلَّى رَفَعَ بَصَرَهُ إِلَى السَّمَاءِ فَنَزَلَتْ آيَةٌ إِنْ لَمْ تَكُنِ {الَّذِينَ هُمْ فِي صَلَاتِهِمْ خَاشِعُونَ} [المؤمنون 2] فَلَا أَدْرِي أَيَّ آيَةٍ هِيَ فَكَانَ مُحَمَّدُ بْنُ سِيرِينَ يُحِبُّ أَنْ لَا يُجَاوِزَ بَصَرُهُ مُصَلَّاهُ هَذَا هُوَ الْمَحْفُوظُ مُرْسَلًا وَقَدْ رُوِيَ عَنْ إِسْمَاعِيلَ بْنِ إِبْرَاهِيمَ هُوَ ابْنُ عَلَيَّةَ مَوْصُولًا