This opinion is wrong. In sooth, one acquires the fruits of whatever among the four sorts of acts one does with the eye, the mind, the tongue, and muscles.
चक्षुषा मनसा वाचा कर्मणा च चतुर्विधम्। कुरुते यादृशं कर्म तादृशं प्रतिपद्यते॥