This is the Shanti Mantra for numerous Upanishads, including Kena, Katha, Shvetashvatara and Taittiriya Upanishads.
om sa-ha-nā-va-VA-tu |
sa-ha-vīr-yam ka-ra-vā-VA-hai |
MĀ vid-vi-ṣā-VA-hai ||
om shān-tih shān-tih shān-TI-h || hari om
Om. May the Lord protect both teacher and disciple, and may He cherish us both. May we work with full energy that our study be perfect and give good results. May we never feel ill-will toward the other.
ॐ सह नाववतु |
सह नौ भुनक्तु |
सह वीर्यं करवावहै |
तेजस्विनावधीतमस्तु मा विद्विषावहै॥
ॐ शान्तिः शान्तिः शान्तिः॥