Written and originally recorded by Jose Feliciano (1975).
Hit album version by George Benson (1976).
From the wiki: “In 1975, on his last RCA album, Just Wanna Rock’n’Roll, guitarist Jose Feliciano released his jazz-funk-Latin instrumental composition ‘Affirmation’. It was covered a year later by jazz guitarist George Benson, on his hit album Breezin’.”