The Discipline of
Transcendence
Vol. 2
talks on Buddha's 42 Sutras

by Osho

talks given live  Aug.-Sept. 1976
Pune, India
book, eBook, mp3 audio
see these links for availability
Buddhist master that Osho talks about in this book:

Gautam Buddha
             oshobob  The Living Workshop                                
                                                         Osho Books