Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Parammarana Sutta
Parammarana Sutta:Mahā Kassapa explains to Sāriputta that the Buddha has omitted to say anything of his existence or otherwise after death, because such a discussion would be fruitless; but he has taught of dukkha and its cessation,because that is fruitful.S.ii.222f.