Page 148
qul halumma shuhadāʾakumu lladhīna yashhadūna ʾanna llāha ḥarrama hādhā fa-ʾin shahidū fa-lā tashhad maʿahum wa-lā tattabiʿ ʾahwāʾa lladhīna kadhdhabū bi-ʾāyātinā wa-lladhīna lā yuʾminūna bi-l-ʾākhirati wa-hum bi-rabbihim yaʿdilūna
Say, ‘Bring your witnesses who may testify that Allah has forbidden this.’ So if they testify, do not testify with them, and do not follow the desires of those who deny Our signs, and those who do not believe in the Hereafter and equate [others] with their Lord.
— Ali Quli Qarai
Surah Al-‘An’am, Verse 150
150. "Say: 'Bring your witnesses who bear witness that Allah has forbidden this.' So if they bear witness, do not testify with them, and do not follow the desires of those who deny Our Signs, and those who do not believe in the Hereafter, and they hold (others) equal with their Lord. "
In this verse, in order to make the falsity of their claims more clear, and also that the proper principals of judgment be observed, the Qur'an invites them to bring their reputable witnesses, if they have any, proving that Allah has forbidden those animals and filths that they claim are prohibited. So, addressing the Messenger of Allah (S), the holy verse says:
After that, it adds the words to imply that if they cannot find any reputable witnesses, whom they certainly may not find, and they suffice only to their own testimony Prophet (S) should never follow them to testify what they claim. The verse says:
The contexts indicate that these false ordinances of theirs have originated from some low desires and blindly imitations, because they have no evidence and proof neither from the divine prophets nor from the heavenly Books upon the prohibition of these things. That is why, in the continuation of the verse, it says:
That is, idolatry, denial of the Hereafter and Resurrection, superstitions, and their sensualities are some alive witnesses that these ordinances of theirs are also artificial, and their claim about prohibition of these things from the side of Allah is groundless and worthless.