A penny saved is a penny earned
um penike aoraðo es um penike ɣanaðo
In Spanish Un penique ahorrado es un penique ganado
This proverb is widely understood in Spanish-speaking cultures as a basic principle of financial prudence.
Example
"Después de comprar ese abrigo, mi abuela me dijo: 'Un penique ahorrado es un penique ganado'."