question #1 Sahih al-Bukhari 2657, Book 52, Hadith 21 : What is the significance of recognizing someone’s voice in Islamic tradition?

Some outer garments were received the Prophet (ﷺ) and my father (Makhrama) said to me, “Let us go to
the Prophet (ﷺ) so that he may give us something from the garments.” So, my father stood at the door and
spoke. The Prophet (ﷺ) recognized his voice and came out carrying a garment and telling Makhrama the
good qualities of that garment, adding, “I have kept this for you, I have sent this for you.”