Chapter LXVIII: Section 4: The members of Congress shall receive a compensation for

their services, to be ascertained by law, and paid out of the Treasury of the Confederacy. They shall in all cases, except treason, felony, and breach of the peace, be privileged from arrest during their attendance at the session of the Congress, and in going to and returning from the same; and for any speech or debate they shall not be questioned in any other place.