Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) was sitting in the mosque and his noble companions were also with him, when suddenly a Bedouin came and urinated in the mosque. The companions of the Prophet (peace and blessings be upon him) said, "Stop, stop!" But the Prophet (peace and blessings be upon him) said to his companions, "Do not stop him from urinating, leave him." (When he finished) then he was called and the Prophet (peace and blessings be upon him) said: "This mosque is not suitable for filth and urine," or as the Messenger of Allah (peace and blessings be upon him) said. "It is only for the recitation of the Qur'an, the remembrance of Allah, and prayer." Then the Prophet (peace and blessings be upon him) said to one of the companions: "Get up, bring us a bucket of water and pour it over it (the urine)." So he brought a bucket of water and poured it over it.