3:66 haa antum haaulaai Haajajtum fiymaa lakum bihii 'Ilmun fa lima tuHaaj-juuna fiymaa laysa lakum bihii 'Ilm* wal-laahu ya'Ålamu wa antum laa ta'Ålamuun

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Ahmed Raza Khan: Mohammed Aqib Qadri:
Listen! This was what you argued about - of which you have some knowledge - why do you then argue about the matter you do not have any knowledge of? And Allah knows whereas you do not know.

Yusuf Ali:
Ah! Ye are those who fell to disputing (Even) in matters of which ye had some knowledge! but why dispute ye in matters of which ye have no knowledge? It is Allah Who knows, and ye who know not!

Pickthal:
Lo! ye are those who argue about that whereof ye have some knowledge: Why then argue ye concerning that whereof ye have no knowledge? Allah knoweth. Ye know not.