وإن كنتم في ريب مما نزلنا على عبدنا فأتوا بسورة من مثله وادعوا شهداءكم من دون الله إن كنتم صادقين
Wa-in kuntum fee raybin mimma nazzalnaAAala AAabdina fa/too bisooratin min mithlihi wadAAooshuhadaakum min dooni Allahi in kuntum sadiqeen
Sahih International
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.
Muhsin Khan
And if you (Arab pagans, Jews, and Christians) are in doubt concerning that which We have sent down (i.e. the Quran) to Our slave (Muhammad Peace be upon him ), then produce a Surah (chapter) of the like thereof and call your witnesses (supporters and helpers) besides Allah, if you are truthful.
Pickthall
And if ye are in doubt concerning that which We reveal unto Our slave (Muhammad), then produce a surah of the like thereof, and call your witness beside Allah if ye are truthful.
Yusuf Ali
And if ye are in doubt as to what We have revealed from time to time to Our servant, then produce a Sura like thereunto; and call your witnesses or helpers (If there are any) besides Allah, if your (doubts) are true.
Shakir
And if you are in doubt as to that which We have revealed to Our servant, then produce a chapter like it and call on your witnesses besides Allah if you are truthful.
Dr. Ghali
And in case you are suspicious (Literally: in suspicion) about what We have been sending down upon Our bondman, (i.e., the prophet. A bondman or slave is the highest title conferred by Allah upon his chosen men) then come up with a s?rah of like (manner), and invoke your witnesses, apart from Allah, in case you are sincere.