It is narrated about Sayyiduna Abdullah bin Arqam (may Allah be pleased with him) that he used to lead his companions in prayer. One day, when the time for prayer came, he went to relieve himself. Then he returned and informed them: I heard the Noble Prophet (peace and blessings of Allah be upon him) say this: "When a person feels the need to relieve himself, he should fulfill that (need) before the prayer."