New York Consolidated Laws, Debtor and Creditor Law - DCD § 53. Consent of creditors to be annexed

The petitioner must annex to his petition one or more written instruments, executed by one or more of his creditors, residing in the United States, having debts owing to him or them in good faith, then due or thereafter to become due, which amount to not less than two-thirds of all the debts, owing by the petitioner to creditors residing within the United States.  Each instrument must be to the effect, that the person or corporation, executing it, consents to the discharge of the petitioner from his debts, upon his complying with the provisions of this article.