Reply #64: If you would bother to actually research the topic it is very easy to find

[Mortos]

The members violated the "standard of collegiality in Jefferson's Manual," which was adopted by Congress in 1837. It is the parliamentary rules under which Congress must act.

http://www.congress.org/news/2011/01/07/absentee_oaths_add_wrinkle_to_proceedings

There was obviously concern on the republican side about the violation because they swore those members in again and nullified the votes recorded prior to the "official" oaths.

Under Jefferson's rules the oath MUST be sworn in proximity to the speaker.

I hope this answers your oft repeated question as to where it says they have to be in the same room.