Baha'u'llah proved his "prophethood(?)" to Sunnis!

The Sunni clerics and students who asked Baha'u'llah to elucidate the meaning of Futuhat-i-Makkiyyih asked Him to compose "a poem in a rhyme and meter identical with that of the longer of the two odes, entitled Qasidiy-i-Ta'iyyih composed by Ibn-i-Farid...This request was complied with, and no less than two thousand verses, in exactly the manner they had specified, were dictated by Him, out of which He selected one hundred and twenty-seven, which He permitted them to keep, deeming the subject matter of the rest premature and unsuitable to the needs of the times."

(GPB:123)