question #2 Sahih al-Bukhari 3296, Book 59, Hadith 105 : How does the Adhan serve as a testimony for the one who pronounces it on the Day of Resurrection?

That Abu Sa`id Al-Khudri said to his father. “I see you are fond of sheep and the desert, so when you
want to pronounce the Adhan, raise your voice with it for whoever will hear the Adhan whether a
human being, or a Jinn, or anything else, will bear witness, in favor on the Day of Resurrection.” Abu
Sa`id added, “I have heard this from Allah’s Messenger (ﷺ) .”