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Based on the sutras, the Vinaya and later commentaries
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Accepts the auspicious grass and makes his vow beneath the Bodhi tree

Attested across multiple schools

The Bodhisatta walks towards the Bodhi tree (the great tree beneath which he later awakens); on the way he asks a grass-cutter for some grass, carries it to the tree, spreads it as a seat and sits cross-legged, his body erect and his mind fixed on the present, and vows that he will not leave this seat until the defilements are destroyed. The acceptance of grass for the seat is found in the Chinese Dharmaguptaka, Mahīśāsaka and Mūlasarvāstivāda Vinayas; the Pali canon of the Southern tradition itself does not mention the grass, recording only that the Buddha awakened beneath this tree.

Different Accounts

The grass-cutter: the Chinese Dharmaguptaka and Mahīśāsaka Vinayas have Ji'an; the Buddha biographies Xiuxing benqi jing and Guoqu xianzai yinguo jing have Jixiang (“Auspicious”); the Pravrajyāvastu of the Chinese Mūlasarvāstivāda Vinaya has Changzhu, while the Saṅghabhedavastu of the same Vinaya says it was a labourer created by ; the later commentaries of the Southern tradition say the grass-cutter presented eight handfuls of grass.

More differences between accounts (2)

The name of the tree: the Chinese Vinayas have the Bodhi tree; the Buddhavaṃsa of the Southern tradition and the later commentaries have the assattha tree (the Bodhi tree's proper name); the Buddha biographies Xiuxing benqi jing and Taizi ruiying benqi jing have the beiduo tree.

The site of the seat: the Chinese Mūlasarvāstivāda Vinaya says a solitary rocky hill split of itself, and the Bodhisatta crossed the Nerañjarā and sat down on the “diamond ground” on the eastern bank; the later commentaries of the Southern tradition say the Bodhisatta walked around the tree examining it, chose the eastern side as the spot where he would not be shaken once seated, and sat facing east.

Dating

The Buddha aged thirty-five, on the eve of the Awakening; the later commentaries of the Southern tradition say it was in the evening of the full-moon day of Vesākha, so on the commentaries' account it can be fixed to the day; the canonical texts themselves give no number of days.

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Research Notes: Reliability, Dating and Sources
How Reliability Is Assessed

Recorded by three schools: the Chinese Dharmaguptaka Vinaya (Sifen lü), the Chinese Mahīśāsaka Vinaya (Wufen lü) and the Chinese Saṅghabhedavastu of the Mūlasarvāstivāda Vinaya. Attested across multiple schools.

Dating Evidence and Precision

Commentarial dating (the canonical texts give no date; later commentaries record it); inferred from the sequence of events (neither the canonical texts nor the commentaries give the time; the year is worked out from the order of this event and those around it). Time precision: fixed to the day.

Sources

Back to The Buddha at 35 · The Eve of the Awakening

Source text

日期怎麼讀

成道第幾年
從佛陀成道開始,每經過一次雨季安居算一年,每一年算到安居結束為止;所有年歲一律依二十九歲出家、三十五歲成道推算。
年份依據
區分經文自己明記、後世註解書記載、先後順序推定及年歲換算。
時間精確度
分別說明確定到日、月、年,或只能放入某幾年之間。
可信度
多派共傳、兩派記載、單派記載與後世補述,表達記載的共傳範圍;與時間及位置是否確定分開閱讀。