Digha Nikaya 2:84
SUJATONirāmisaṁ vā adukkhamasukhaṁ vedanaṁ vedayamāno ‘nirāmisaṁ adukkhamasukhaṁ vedanaṁ vedayāmī’ti pajānāti.
When they feel a neutral feeling not of the flesh, they know: ‘I feel a neutral feeling not of the flesh.’
Nirāmisaṁ vā adukkhamasukhaṁ vedanaṁ vedayamāno ‘nirāmisaṁ adukkhamasukhaṁ vedanaṁ vedayāmī’ti pajānāti.
When they feel a neutral feeling not of the flesh, they know: ‘I feel a neutral feeling not of the flesh.’