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BG. 15.1
श्रीभगवानुवाच
ऊर्ध्वमूलमध:शाखमश्वत्थं प्राहुरव्ययम् ।
छन्दांसि यस्य पर्णानि यस्तं वेद स वेदवित् ॥ १ ॥
śrī-bhagavān uvāca
ūrdhva-mūlam adhaḥ-śākham
aśvatthaṁ prāhur avyayam
chandāṁsi yasya parṇāni
yas taṁ veda sa veda-vit
Translation
The Supreme Personality of Godhead said: It is said that there is an imperishable ---------------- tree that has its roots upward and its branches down and whose leaves are the Vedic hymns. One who knows this tree is the knower of the Vedas