Wudu is nullified by passing urine, stool or wind, deep sleep, loss of consciousness and (in many schools) touching private parts or eating camel meat as scholars differ. Swalah is nullified by speaking, eating or drinking, laughing aloud, turning away from the Qibla, or losing wudu. Conditions of swalah: purity, covering the body, facing the Qibla, correct time and intention.