20:104 naHnu a'Ålamu bimaa yaquuluuna idh yaquulu amthaluhum Tariyqatan il labithtum il-laa yawmaa

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Ahmed Raza Khan: Mohammed Aqib Qadri:
We know well what they will utter, whereas the wisest among them will say, "You have stayed just for a day"

Yusuf Ali:
We know best what they will say, when their leader most eminent in conduct will say: "Ye tarried not longer than a day!"

Pickthal:
We are Best Aware of what they utter when their best in conduct say: Ye have tarried but a day.