Abu Ash-Sha‘thā' relates in this Hadīth that they were sitting with Abu Hurayrah (may Allah be pleased with him) in the mosque, and the Muezzin proclaimed the Adhān. Then, a man stood up and walked. Meanwhile, Abu Hurayrah kept looking at him to know whether he would leave the mosque or what. Then, when it became clear that the man was actually leaving, Abu Hurayrah (may Allah be pleased with him) stated that this act runs counter to the Prophet’s guidance.