A yakkha. One day, while travelling through the air with his friend, he saw Sāriputta sitting in concentration (samādhi), his head newly shaved. Ignoring his friend’s warning, Nandaka struck Sāriputta oh the head; the former immediately fell down, his body aflame, and swallowed up in hell. (MA.ii.814; Mil.100; the incident is related at Ud.iv.4, UdA.244 ff., and referred to in ThagA.ii.116, but the yakkha’s name is not given. The blow was hard enough to kill an elephant seven or eight cubits high or shatter a rock. Sāriputta was outside Kapotakandara, Mahā-Moggallāna being nearby).