Cūḷa Summa untranslated

Cūḷa Summa, Cūla Summa. An eminent Commentator of Ceylon, teacher of Tipiṭaka Cūḷa Nāga. The pupil seems to have disagreed with some of the explanations of his teacher – e.g., as to the meaning of ekāyanamagga. Cūḷa Nāga said it referred to pubbabhāgasatipaṭṭhānamagga, but Cūḷa Summa held that it referred to missakamagga. They could come to no decision; but while on his way to the bathing-place, Cūḷa Summa revolved the problem in his mind, and discovering that his pupil was right announced his mistake when Cūḷa Nāga was preaching on the day of the first quarter. Cūḷa Nāga, realising how even his teacher could go astray on this point, explained it at great length for the benefit of future generations (DN­a.iii.744f.; MN­a.i.187). The Aṅguttara Commentary calls him Dīpavihāravāsī (AN­a.ii.845), while the Vibhaṅga Commentary says that he dwelt in Niṅkaponnapadhānaghara in Cittalapabbata (p.489; probably Cūḷa Summa is here a misreading for Cūḷa Sumana). The Samantapāsādikā (iv.892) says that he lived in Rohaṇa.