Satipatthana Sutta
The Satipaṭṭhāna Sutta (Majjhima Nikaya 10: The Discourse on the Establishing of Mindfulness), and the subsequently created Mahāsatipaṭṭhāna Sutta (Dīgha Nikāya 22: The Great Discourse on the Establishing of Mindfulness), are two of the most celebrated and widely studied discourses in the Pāli Canon of Theravada Buddhism, acting as the foundation for contemporary vipassana meditation practice. The Pāli texts of the Satipaṭṭhāna Sutta and the Mahāsatipaṭṭhāna Sutta are largely similar in content; the main difference being a section about the Four Noble Truths (Catu Ariya Sacca) in the Observation of Phenomena (Dhammānupassana), which is greatly expanded in the Mahāsatipaṭṭhāna Sutta.