This discourse was taught by the Blessed One, taught by the Arahant, the fully enlightened Supreme Buddha. This is as I heard,
“Monks, when referring to a monk who practices the Dhamma in accordance with the Dhamma, this is the proper way of defining, ‘practice according to the Dhamma.’ When speaking, he speaks only the Dhamma and does not speak things which are untrue. When thinking, he thinks only thoughts of the Dhamma and does not think of untrue things. At other times, he lives with equanimity, with clear mindfulness, and wise awareness.”
This is the meaning of what the Blessed One said. So, with regard to this, it was said:
The monk who dwells in the Dhamma, delights in the Dhamma, and reflects upon the Dhamma does not fall away from the Perfect Dhamma.
Whether walking, standing, sitting, or lying down, with the mind well-restrained he experiences great peace.
This, too, is the meaning of what was said by the Blessed One. This is exactly as I heard.