-Or do they say [about the Prophet], "He invented it?" Say, "Then bring forth a surah like it and call upon [for assistance] whomever you can besides Allah , if you should be truthful."

Surat Yunus

10:38

-Or do they say, "He invented it"? Say, "Then bring ten surahs like it that have been invented and call upon [for assistance] whomever you can besides Allah , if you should be truthful."

Surat Hud

11:13

-Then let them produce a statement like it, if they should be truthful.

Surat At-Tur

52:34

-And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah , if you should be truthful.

Surat Al-Baqara

2:23