Buddhist Dictionary of Pali Proper Names by G P Malalasekera
anottapā sutta
Anottapā Sutta:Records a conversation between Mahākassapa and Sāriputta in Isipatana. A man without ardour (anātāpī) and without care (a-nottāpī) is incapable of Enlightenment and Nibbana. S.ii.195f.