Abu’l-Sha’tha’ Muharibi (may Allah have mercy on him) says that once we were sitting in the mosque with Hazrat Abu Hurairah (may Allah be pleased with him) when the muezzin gave the call to prayer. A man stood up and left the mosque. Hazrat Abu Hurairah (may Allah be pleased with him) said:“This man has disobeyed Abu’l-Qasim (peace and blessings be upon him).”Then he said:“The Noble Prophet (peace and blessings be upon him) commanded us that when you are in the mosque and the call to prayer is given, do not leave the mosque without offering the prayer.”