Ibn Battutah, the plagiarizer?

I need more evidence than this although there were parts of the account that always struck me as too imaginative: "Most notable are however the striking resemblances to various writings of his era, primarily to a pilgrimage account written by a certain Ahmad Ibn Jubayr. Pages of this work were either slightly reworked or copied word for word: "Many of Ibn Battuta's accounts do not provide us with his immediate travel impressions at all, but rather confront us with his skill as a plagiariser," says Elger.  In this context, Elger also has a plausible explanation for why Ibn Battuta repeatedly mentions the generosity he was shown by all the rulers he encountered."