From the etiquettes of seeking permission is to clearly state one's name when asked who it is that is knocking:
26 July 2022 • 3.2K views
«قال جبريل لخازن السماء: افتح. قال: من هذا؟ قال: هذا جبريل».
“Jibreel said to the gatekeeper of the heaven: 'Open.' He (the gatekeeper) asked: 'Who is this?' He said: 'This is Jibreel.'” [Bukhari (3887)]
قال الحافظ ابن حجر رحمه الله:
فيه أدب الاستئذان، أن المستأذن يُسمِّي نفسه لئلَّا يلتبس بغيره.
[فتح الباري ٥٣/٢]
Al-Hafidh Ibn Hajar rahimahullah commented: “This (hadith) contains the etiquette of seeking permission; which is for the one seeking permission to state their name so as not to be confused for someone else.
[Fat-hul Bari (2/53)]
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