AQ Khan stared his business before Mush was even the head of the army. In fact it was during PPP and PML rule that most of this went down. Nice try at falsifying facts though.
Pakistan tested its first nuke in May 1998, so AQ Khan couldn't have sold this technology before that. Mush took over in Oct 1999 and from what we've seen most of alleged transactions were in Mush era and its not possible that he could've done it without Mushy's/govt's knowledge.