`Abdullah bin `Abdur-Rahman:
that Abu Sa`id Al-Khudri said to him, "I see that you like sheep and the desert, so when you are
looking after your sheep or when you are in the desert and want to pronounce the Adhan, raise your
voice, for no Jinn, human being or any other things hear the Mu`adh-dhin's voice but will be a witness
for him on the Day of Resurrection." Abu Sa`id added, "I heard this from Allah's Messenger (ﷺ)."