大唐西域記 9.34

9.34

大迦葉波結集西北，有窣堵波，是阿難受僧訶責，不預結集，至此宴坐，證羅漢果。證果之後，方乃預焉。

North-west of the place where the great Kasyapa held the convocation is a stupa. This is where Ananda, being forbidden by the priests to take part in the assembly, came and sat down in silence and reached the fruit (position) of an Arhat. After this he joined the assembly. Going west from this point 20 li or so, is a stupa built by Asoka-raja. This is the spot where the "great assembly" (Mahasangha) formed their collection of books (or, held their assembly). Those who had not been permitted to join Kasyapa's assembly, whether learners or those above learning (Arhats), to the number of 100,000 men, came together to this spot and said, "Whilst Tathagata was alive we all had a common master, but now the King of the Law is dead it is different. We too wish to show our gratitude to Buddha, and we also will hold an assembly for collecting the scriptures." On this the common folk with the holy disciples came to the assembly (all assembled), the foolish and wise alike flocked together and collected the Sutra-pitaka, the Vinaya-pitaka, the Abhidharma-pitaka, the miscellaneous Pitaka (Khuddakanikaya), and the Dharani-pitaka. Thus they distinguished five Pitakas. And because in this assembly both common folk and holy personages were mixed together, it was called "the assembly of the great congregation" (Mahasangha).