Sayyiduna Buraidah (may Allah be pleased with him) narrates that the Messenger of Allah (peace be upon him) led the prayer, and a man said, "Who has called towards the red camel? (Who has seen it?)" So the Messenger of Allah (peace be upon him) said: "(May Allah make it so) you do not find the camel. Indeed, mosques have only been built for the purposes for which they were built (for worship and the remembrance of Allah)." This is the hadith of Waki’.