Interview with HG Govinda Datta Prabhu at ISKCON Hawaii (14 min. video)
Srila Prabhupada: If a devotee once utters the holy name of the Lord, or if it penetrates his mind or enters his ear, which is the channel of aural reception, that holy name will certainly deliver him from material bondage, whether vibrated properly or improperly, with correct or incorrect grammar, or properly joined or vibrated in separate parts. (Sri-Caitanya-caritamrta, Antya-lila, 3.60)
Watch it here: https://goo.gl/RNkEF7