Article 4, Section 3, Clause 2
Document 5
Johnson & Graham v. M'Intosh
8 Wheat. 543 1823
The Founders' Constitution
Volume 4, Article 4, Section 3, Clause 2, Document 5
http://press-pubs.uchicago.edu/founders/documents/a4_3_2s5.html
The University of Chicago Press