The
Ben Ish Hai (Haham
Yosef Hayyim) of
Baghdad taught that he was a
gilgul, a reincarnation, of the soul of Benayahu ben Yehoyada. This is why many of his most prominent books were named from words in the
passuk (
passage)
Shmuel II 23:20 describing Benayahu. He even visited Benayahu's grave when he visited
Israel in 1869.
The Haham Hayyim's books which were named after Benayahu are as follows:
sources: mainly wwwebsites that exist only in google's memory.