Fugitives from Labor

Article 4 - States' Relations
Section 2
Clause 3

No Person held to Service or Labour in one State, under the Laws thereof, escaping into another, shall, in Consequence of any Law or Regulation therein, be discharged from such Service or Labour, but shall be delivered up on Claim of the Party to whom such Service or Labour may be due.

Amended by
Amendment 13 - Slavery and Involuntary Servitude