Rev. Dhammabodhi and Upasaka Dustin talk about the teachings on body sensations from the Vedanasamyutta in the Samyuta Nikaya
SN 36.4
https://suttacentral.net/sn36.4/en/sujato?lang=en&layout=plain&reference=none¬es=asterisk&highlight=false&script=latin
SN 36.6
https://suttacentral.net/sn36.6/en/sujato?lang=en&layout=plain&reference=none¬es=asterisk&highlight=false&script=latin