Explanation

‘Abdullāh ibn ‘Abdur-Rahmān ibn Abi Sa‘sa‘ah reported: Abu Sa‘īd al-Khudri (may Allah be pleased with him) said to me: "I see that you like sheep and wilderness. So whenever you are with your sheep - or in the wilderness - and you want to call the Adhān, raise your voice, for whoever hears the voice of the Muezzin, whether that be a human being, a Jinn, or any other creature, they will testify in his favor (the Muezzin) on the Day of Judgment." It is said that "any creature" applies to whoever's testimony can be accepted. It is also said that it may generally apply to anything that can hear, even from among the animals, excluding inanimate objects. They will testify that he was one of those who called the Adhān, indicating his merit and highlighting his reward thereby.