Sayyiduna Abdullah bin Abdur Rahman (may Allah be pleased with him) narrates from his father, who was under the guardianship of Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him). He narrates: Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) said to me: O my son! When you are outside the settlement, then call the adhan in a loud voice. Because I heard the Noble Prophet (peace and blessings be upon him) say: "Whoever—human, jinn, stone, tree, or whatever—hears it, will bear witness in favor of that person on the Day of Resurrection."