Readings by Ajahn Pasanno: [Mindfulness of breathing] [Mindfulness of body]
Right Mindfulness pp. 115-119.
Sutta: MN 80: Vekhanassa Sutta, To Vekhanassa.
Sutta: Ud 7.8: “Kaccāna.”
Sutta: MN 62: Mahārāhulaovāda Sutta, The Greater Discourse of Advice to Rāhula.