Weijin, a monk from the Tang Dynasty, is known for his translation of the *Bhadrakalpika Sutra*.
Vairocanābhisaṃbodhi Sutra: Chapter on the Master's Realization of True Wisdom, Section on the Master's Abiding in the Contemplation of the Letter 'A' (大毘盧遮那經阿闍梨真實智品中阿闍梨住阿字觀門)