This is what I heard from the Blessed One. Those days, the Blessed One was living in the province of Sāvatthī, at Jeta’s Park, at Anāthapiṇḍika’s monastery. One day, a certain monk was sitting not far from the Blessed One, his legs crossed, his body held upright. He was enduring fierce pains, sharp and severe, due to old kamma. He was enduring mindfully, with full awareness and was untroubled by the pain. The Blessed One saw him sitting not far away, his legs crossed, his body held upright. He was enduring fierce pains, sharp and severe, due to old kamma. He was enduring mindfully, with full awareness and was untroubled by the pain.
Then, on realizing the equanimity of the liberated mind, the Blessed One spoke the following inspired verses:
“The monk who has left all kamma behind, shaking off the defilements of past lives, free of conceit “he is”. There’s no need for him to grieve in the midst of other people.”