I can’t say it based on a source, but yes most likely, and if not, von Clausewitz is such a fundamental of warfare and specially of guerrilla warfare and protracted and mobile war that he would have ended up adopting some of his theory one way or another because von Clausewitz essentially changed how war was seen and performed. This, and of course Sun Tzu, Taoism and well, dialectical materialism all shaped the way Mao applied asymmetrical warfare tactics successfully.

I’ve posted this before, which comes from a presentation a professor did on some US university about von Clausewitz and Mao which helps you understand how these concepts where applied militarily.