An Shigao
Between 148 and 170 CE, the Parthian monk An Shigao came to China and translated a work which describes the color of monastic robes (Skt. "kāṣāya") utilized in five major Indian Buddhist sects, called "Da Biqiu Sanqian Weiyi" (Ch. 大比丘三千威儀). Another text translated at a later date, the "Śāriputraparipṛcchā", contains a very similar passage corroborating this information. In both sources, the Mahāsāṃghikas are described as wearing yellow robes. The relevant portion of the "Śāriputraparipṛcchā" reads: