He will have to have the information - is this correct sentence?

[Sureshvemuri]

I have heard this many times and suspect the correctness of this.
"He will have to have the information - is this correct sentence?"
I know that "have to have" = Should have
Can we use - will + should have OR will + have to have?

[Alan]

Hi,

'Have to' is of course a substitute for 'must' and in the same way that you use 'had to' for a past indication, 'will have to' is used for a future one. 'Will' and 'should' can't both be used together as modals for another following verb.

Alan
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[Sureshvemuri]

Thanks for your reply.
I assume, we should not use - "He will have to have".