Aitareyabrahmana 7.30

7.30

ete vai te trayo bhakṣā rājann, iti hovāca,
yeṣām āśāṃ neyāt kṣatriyo yajamāno
'thāsyaiṣa svo bhakṣo:
nyagrodhasyāvarodhāś ca phalāni caudumbarāṇy āśvatthāni plākṣāṇy
abhiṣuṇuyāt tāni bhakṣayet, so 'sya svo bhakṣo
yato vā adhi devā yajñeneṣṭvā svargaṃ lokam āyaṃs,
tatraitāṃś camasān nyubjaṃs, te nyagrodhā abhavan.
nyubjā iti hāpy enān etarhy ācakṣate Kurukṣetre.
te ha prathamajā nyagrodhānāṃ, tebhyo hānye 'dhijātās
te yan nyañco 'rohaṃs tasmān nyaṅ rohati nyagroho, nyagroho vai nāma.
taṃ nyagrohaṃ santaṃ nyagrodha ity ācakṣate parokṣeṇa,
parokṣapriyā iva hi devāḥ

vii. 30 (xxxv. 4). ‘These are the three foods, O king’, he said ‘which a Kṣatriya as sacrificer should not desire. Now this is his proper food; he should press together the descending growths and the fruits of the Nyagrodha and (the fruits of) the Udumbara, Açvattha and Plakṣa trees, and partake of them. This is his proper food. On the place whence by offering the sacrifice the gods went to the world of heaven they tilted over (nyubjan) the goblets; they became the Nyagrodha trees. Even to-day in Kurukṣetra they call them the Nyubjas. They were the firstborn of Nyagrodhas; from them are the others born. In that they grew downwards, therefore the Nyagroha grows downwards; its name is Nyagroha; it being Nyagroha the gods call Nyagrodha mysteriously, for the gods love mystery as it were.’