Found this:
"The Testament of Moses (Assumption of Moses 1:15) and Biblical Antiquities 19, 20d (AD 110-130), stress the idea that Moses was buried in public: that is, many saw his burial; Ginzberg remarks that this has a very likely aim to combat the view that he did not die at all, but was translated to heaven." (Teeple p. 43) "Moses disappeared in a cloud as he was about to embrace Eleazar and Joshua." (Teeple p. 43) Of interest here, is the fact that Lucifer, the Devil, knowing what Moses would accomplish as a translated being, wanted him dead, and thus exerted a tremendous effort to keep Moses from being translated. Michael had to intervene in contention over the status of the body of Moses. (Jude 9, Metzger p. 203) Michael won. Moses was translated.
https://www.einarerickson.com/research/88-the-translation-of-alma