They [Yusuf's (Joseph) men] said: "What then shall be the penalty of

﴿قَالُواْ فَمَا جَزَٰٓؤُهُۥٓ إِن كُنتُمۡ كَٰذِبِينَ ﴾
[يُوسُف: 74]

They [Yusuf's (Joseph) men] said: "What then shall be the penalty of him, if you are (proved to be) liars

﴿قالوا فما جزاؤه إن كنتم كاذبين﴾ [يُوسُف: 74]

Al Bilal Muhammad Et Al
They said, “What then will be the penalty for this if you are proved to have lied?”

Ali Bakhtiari Nejad
They said: then what is its punishment, if you are liars

Ali Quli Qarai
They said, ‘What shall be its requital if you [prove to] be lying?’

Ali Unal
They said: "What, then, shall be the penalty for it if you are proved liars

Hamid S Aziz
They said, "And what shall be the penalty thereof if you prove to be liars

John Medows Rodwell
What," said the Egyptians, "shall be the recompense of him who hath stolen it, if ye be found liars

Literal
They said: "So what (is) his reward if you were lying/denying

Mir Anees Original
They said, “Then what should be the penalty for it if you are liars?”

Mir Aneesuddin
They said, “Then what should be the penalty for it if you are liars?”