'Ubida b. Samit reported that when wahi descended upon Allah's Apostle ﷺ, he lowered his head and so lowered his Companions their heads, and when (this state) was over, he raised his head.
كَانَ النَّبِيُّ ﷺ إِذَا أُنْزِلَ عَلَيْهِ الْوَحْىُ نَكَسَ رَأْسَهُ وَنَكَسَ أَصْحَابُهُ رُءُوسَهُمْ فَلَمَّا أُتْلِيَ عَنْهُ رَفَعَ رَأْسَهُ