Is chasing a pig considered reprehensible (makruh)? And does its sweat nullify ablution (wudu') or necessitate washing clothes for prayer (salat)?

The pig is a malevolent animal, prohibited for consumption, and it is mentioned in the Quran and Sunnah (definition). Human sweat does not invalidate ablution (wudu), but the sweat of a pig is impure (najis), and anything it touches must be washed. Scholars have differed on the number of times it needs to be washed, but the preponderant opinion is that a single wash is sufficient, without the need for earth.