佛陀时代六师外道之一，主张彻底的怀疑论，教法因含糊其辞而被称为“诡辩派”；舍利弗与大目犍连原本从其学法，后转投佛陀门下。

One of the six well-known heretical teachers of the Buddha’s day, a thoroughgoing sceptic whose evasive teaching style became known as ‘eel-wriggling’; he was the original teacher of Sāriputta and Mahā-Moggallāna before they left him for the Buddha.