Shake hand

Why does Islam forbid men to shake hands with non mahram women? Batalkah wudhu a man who shakes hands with a woman without lust?

Answer: Islam forbids that because it is one of the biggest slander. Do not let a man touch the skin of a woman who is not a mahram or the whole thing that provokes a slander. Therefore, Allah Subhanahu Wata'ala ordered to subdue the view to prevent this mafsadat (destruction). As for the one who touches his wife, his wudhunya is not void, even if it is done by lust. Unless it takes out madzi or semen. If he gets the semen out, it must take a bath and if that issued is madzi, then he should perform ablution and wash his dzakar