Article 1, Section 10, Clause 1
Document 11
University of North Carolina v. Fox
1 Mur. 58 N.C. 1805(See Amend. V [due process and taking], no. 19 )
The Founders' Constitution
Volume 3, Article 1, Section 10, Clause 1, Document 11
http://press-pubs.uchicago.edu/founders/documents/a1_10_1s11.html
The University of Chicago Press