“Should a person lay claim to a cause and produce his ...”

Should a person lay claim to a cause and produce his proofs, then those who seek to repudiate him are required to produce proofs like unto his. If they succeed in doing so, his words will prove vain and they will prevail; otherwise neither his words will cease nor the proofs he hath set forth will become void. I admonish you, O ye who are invested with the Bayán, if ye would fain assert your ascendancy, confront not any soul unless ye give proofs similar to that which he hath adduced; for Truth shall be firmly established, while aught else besides it is sure to perish.

How numerous the people who engaged in contests with Muḥammad, the Apostle of God, and were eventually reduced to naught, inasmuch as they were powerless to bring forth proofs similar to that which God had sent down unto Him. Had they been abashed and modest, and had they realized the nature of the proofs wherewith He was invested, they would never have challenged Him. But they regarded themselves as champions of their own religion. Therefore God laid hold on them according to their deserts and vindicated the Truth through the power of Truth. This is what ye clearly perceive today in the Muḥammadan Revelation.

Who is the man amongst you who can challenge the exalted Thrones of Reality in every Dispensation, while all existence is wholly dependent upon Them? Indeed, God hath wiped out all those who have opposed Them from the beginning that hath no beginning until the present day and hath conclusively demonstrated the Truth through the power of Truth. Verily, He is the Almighty, the Omnipotent, the All-Powerful. XVII, 11.

Source: the Báb, Selections from the Writings of the Báb (1976). Public domain text from Project Gutenberg eBook #18828.

the Báb. (1976). *Selections from the Writings of the Báb*. https://www.gutenberg.org/cache/epub/18828/pg18828-images.html