question #3 Sahih al-Bukhari 5793, Book 77, Hadith 11 : What does the act of the Prophet (ﷺ) putting on his Rida signify in terms of preparation or respect?

The Prophet (ﷺ) asked for his Rida, put it on and set out walking. Zaid bin Haritha and I followed him till
he reached the house where Harnza (bin `Abdul Muttalib) was present and asked for permission to
enter, and they gave us permission.