大般涅槃經義記 4.210

4.210

文中有六：第一文殊舉純陀疑，請佛釋通；二佛遣出疑，許為除斷；三文殊正問；四如來釋通；五文殊領解；六有難解者，迦葉對佛問答廣論。

The text has six parts: First, Mañjuśrī raises Cunda's doubt and requests the Buddha to explain and resolve it. Second, the Buddha allows the doubt to be stated and promises to eliminate it. Third, Mañjuśrī poses the actual question. Fourth, the Tathāgata explains and resolves it. Fifth, Mañjuśrī comprehends it. Sixth, where it is difficult to understand, Kāśyapa holds an extensive discussion in question-and-answer with the Buddha.