Title 9, Chapter 10, Section 155
The illness or absence, from providential cause, of counsel where
there is but one, or of the leading counsel where there are more
than one, shall be a sufficient ground for continuance, provided
that the party making the application for a continuance will swear
that he cannot go safely to trial without the services of the absent
counsel, that he expects his services at the next term, and that the
application is not made for delay only.