Asking permission to enter by knocking
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا بِشْرٌ، عَنْ شُعْبَةَ، عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ، عَنْ جَابِرٍ، أَنَّهُ ذَهَبَ إِلَى النَّبِيِّ صلى الله عليه وسلم فِي دَيْنِ أَبِيهِ فَدَقَقْتُ الْبَابَ فَقَالَ " مَنْ هَذَا " . قُلْتُ أَنَا . قَالَ " أَنَا أَنَا " . كَأَنَّهُ كَرِهَهُ .
Jabir said that he went to the prophet (ﷺ) about the debt of my father. He said : I knocked at the door. He asked : who is there? I replied: it is I. he said: I, as though he disapproved of it.