[Machine] Sa'd ibn Mu'adh came to the Prophet ﷺ and sought permission to enter while he was facing the door. The Prophet ﷺ said with his hand like this, "O Sa'd, seeking permission is by just looking."
أَتَى سَعْدُ بْنُ مُعَاذٍ النَّبِيَّ ﷺ فَاسْتَأْذَنَ عَلَيْهِ وَهُوَ مُسْتَقْبِلٌ الْبَابَ فَقَالَ النَّبِيُّ ﷺ بِيَدِهِ هَكَذَا يَا سَعْدُ فَإِنَّمَا الِاسْتِئْذَانُ مِنَ النَّظَرِ
A man came. Uthman's version has: Sa'd ibn AbuWaqqas came. He stood at the door. Uthman's version has: (He stood) facing the door. The Prophet ﷺ said to him: Away from it, (stand) this side or that side. Asking permission is meant to escape from the look of an eye.
عُثْمَانُ سَعْدُ بْنُ أَبِي وَقَّاصٍ فَوَقَفَ عَلَى بَابِ النَّبِيِّ ﷺ يَسْتَأْذِنُ فَقَامَ عَلَى الْبَابِ قَالَ عُثْمَانُ مُسْتَقْبِلَ الْبَابِ فَقَالَ لَهُ النَّبِيُّ ﷺ هَكَذَا عَنْكَ أَوْ هَكَذَا فَإِنَّمَا الاِسْتِئْذَانُ مِنَ النَّظَرِ