A pioneering judge, who became the first Muslim woman in US history to serve on the bench, was found dead Wednesday — washed up on the Manhattan side of the Hudson River, sources said. Sheila Abdus-Salaam, 65, was discovered floating in the water near 132nd Street and Hudson Parkway at around 1:45 p.m., according to police sources. Witnesses had spotted her fully clothed body and called 911, cops said.