Article 2, Section 2, Clause 1

Document 21

Gilbert Livingston, Proposed Amendment, New York Ratifying Convention

Sec. 2. Clause 1, respecting the powers of the President,--

"Resolved, as the opinion of this committee, that the President of the United States should never command the army, militia, or navy of the United States, in person, without the consent of the Congress; and that he should not have the power to grant pardons for treason, without the consent of the Congress; but that, in cases where persons are convicted of treason, he should have authority to grant reprieves, until their cases can be laid before the Congress."

The Founders' Constitution
Volume 4, Article 2, Section 2, Clause 1, Document 21
http://press-pubs.uchicago.edu/founders/documents/a2_2_1s21.html
The University of Chicago Press

Elliot, Jonathan, ed. The Debates in the Several State Conventions on the Adoption of the Federal Constitution as Recommended by the General Convention at Philadelphia in 1787. . . . 5 vols. 2d ed. 1888. Reprint. New York: Burt Franklin, n.d.