a promise is a promise

Proverb

 * 1) One must keep one's promises.

Translations

 * Bulgarian: обещаното си е обещано
 * Czech: slib je slib
 * French:
 * German:, versprochen ist versprochen
 * Portuguese: promessa é dívida
 * Russian: угово́р доро́же де́нег (agreement is worth more than money)
 * Spanish: