Going for Refuge - Taking the Precepts by Bhikkhu Bodhi
The following two tracts were written for the purpose of giving a clear and concise explanation of these two steps.
Prayer of Three Jewels — by Khenpo Karsang Tenzin
Four sutras belonging to Vajrayana Karma Kagyu Lineage: 1. Prayer of Three Jewels · 2. Medicine Buddha · 3. Sadhana of The 4-Arms White Chenrezig · 4. Aspiration Prayer of Samantabhadra.