Digha Nikaya 2:77
SUJATODukkhaṁ vā vedanaṁ vedayamāno ‘dukkhaṁ vedanaṁ vedayāmī’ti pajānāti.
When they feel a painful feeling, they know: ‘I feel a painful feeling.’
Dukkhaṁ vā vedanaṁ vedayamāno ‘dukkhaṁ vedanaṁ vedayāmī’ti pajānāti.
When they feel a painful feeling, they know: ‘I feel a painful feeling.’