Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Nisanti Sutta
Nisanti Sutta:Ananda tells Sāriputta how a monk who is apt at attha,dhamma,vyañjana,nirutti and pubbāparānusandhi,comes speedily to grasp things and does not forget about that which he has grasped.A.iii.201.