Narrated Abu Huraira: Once Iqama was pronounced and the people had straightened the rows, Allah's Apostle went forward (to lead the prayer) but he was Junub, so he said, "Remain in your places." And he went out, took a bath and returned with water trickling from his head. Then he led the prayer.
Hadith Referenceصحيح البخاري / كتاب الأذان / 640
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة