勝鬘経 (Skt Shrimaladevi-simhanada-sutra; Chin Sheng-man-ching; Jpn Shoman-gyo )
Also known as the Lion's Roar of Queen Shrimala Sutra. A sutra translated into Chinese in 436 by Gunabhadra. Fragments of the Sanskrit text and a Tibetan translation exist. This sutra takes the form of preaching, with the aid of Shakyamuni Buddha's power, by Lady Shrimala, the daughter of King Prasenajit of Kosala who became the consort of King Mitrayashas (also known as Yashomitra) of Ayodhyain India. She expounds the one vehicle teaching and makes clear that the matrix of the Thus Come One (Skt tathagata-garbha ), or the Buddha nature, is inherent in all living beings. Along with the Vimalakirti Sutra, it is valued as a scripture for lay Buddhists. Another Chinese translation, by Bodhiruchi (d. 727), is contained in the Accumulated Treasures Sutra, a compilation of a number of smaller sutras. According to this sutra, Prasenajit and Mallika, both followers of Shakyamuni, wished to lead their daughter Shrimala to the Buddha way.
They sent a messenger to Shrimala in Ayodhyain with a letter from them praising the Buddha and his virtues. Reading her parents' letter, Shrimala was overjoyed and desired to listen to the Buddha preach. Shakyamuni, who was staying at Jetavana Monastery in Shravasti of Kosala, perceived Shrimala's wish and suddenly appeared before her. She respectfully and reverently praised the Buddha and his virtues, and Shakyamuni prophesied that in a future existence she would become a Buddha named Universal Light. At that time, she vowed to protect the correct teaching with her life and work to save the people from suffering