"The Bab had no doubts"Unquote.
As one has admitted that Bab had not doubt about Quran being the Word of G-d,and he also had no doubt whatsoever that Muhammad was a prophet/messenger of God.
Similarly Bahaullah had not doubt about Quran being the Word of G-d,and he also had no doubt whatsoever that Muhammad was a prophet/messenger of God. Right, please?
If yes, then there was no challenge to Bab from Muhammad. The verses of Quran quoted by one in post #143 above were/are addressed to the doubters and non-believers of Muhammad and Quran not otherwise.
It appears there is a misunderstanding.
I suggested the Bab Fulfilled the Challenge by demonstrating He could give verses from God like unto the Quran. Thus the challenge given by Muhammad in the Quran, now reverts to the Muslims and all of Humanity to the Bab and Baha'u'llah's Writings.