Those who associate partners with Allah will soon say: ‘Had Allah so willed, neither we nor our fathers would have committed polytheism; nor would have we declared anything forbidden (without authority).’ In like manner the people before them also belied until they tasted Our torment. Say: ‘Do you have any (authentic) knowledge which you may bring forth for us? (If so, then present it).’ You (abandoning knowledge of certitude) follow only assumptions and speculations and tell sheer lies (based on guesswork).’