On Yuan Chwang's Travels in India, 629–645 A.D. v2.c19.146

v2.c19.146

The pilgrim proceeds to describe that in a wood to the east of the Indra Tank was the tank of the Dragon-king Muchalinda, the water of which was clear and dark with a sweet agreeable taste. On the west bank was a small temple with an image of the Buddha. It was here that Buddha on attaining bodhi sat in samādhi for seven days while the Dragon-king, with his body in seven coils round the body of the Buddha and with several heads specially produced for the purpose, screened and protected him. On the opposite bank was the home of this Dragon-king.