Answer:
(Fatwa: 867/541/L=1432)
(1) It is makrooh to offer salah behind clean shaved imam.
(2) It is not lawful to offer salah behind an imam who does masah (wet wiping) on prevalent woolen, cotton or nylon socks.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
