Who amongst the following defined Hindu Law as "Hindu Law is law of Smritis" ?

Mayne, in his treatise on Hindu Law and Usage, described Hindu law as the law of the Smritis as expounded in the Sanskrit commentaries and digests, which, as modified and supplemented by custom, is administered by the courts. Derrett was a leading modern writer on Hindu law but is not the author of this definition, and Salmond wrote on general jurisprudence.