Is the opinion of His Eminence regarding the purification of the body and clothes from urine, whether with a…

Is the opinion of His Eminence regarding the purification of the body and clothes from urine, whether with a large amount of water as a precaution or as a legal ruling, the same for the purification with a small amount of water? If my religious authority (Marja) prescribes the washing of the body and clothes with a large amount of water twice to purify from urine, can I follow His Eminence's opinion?