An ancient web page from the Bible Belt denouncing Rajneesh ironically contains the link to the tale of his previous lives. The book is now hard to obtain.
Rajneesh taught, not a strict reincarnation, but a form of progressive transmigration. Rajneesh believed that his last previous birth was 700 years ago, and that he was 106 years old when he died. (Dimensions Beyond the Known, pp.68,76).
The Bible refutes both reincarnation and transmigration with the words in Hebrews 9:27,
“It is appointed unto men to die ONCE and after this comes judgment.”
The idea of progresssive transmigration is actually an intriguing take, but in the end the same as that of ‘reincarnation’, more or less.