aśvatthaṁ prāhur avyayam
chandāṁsi yasya parṇāni
yas taṁ veda sa veda-vit
śrī-bhagavān uvāca — the Supreme Personality of Godhead said; ūrdhva-mūlam — with roots above; adhaḥ — downwards; śākham — branches; aśvattham — a banyan tree; prāhuḥ — is said; avyayam — eternal; chandāṁsi — the Vedic hymns; yasya — of which; parṇāni — the leaves; yaḥ — anyone who; tam — that; veda — knows; saḥ — he; veda-vit — the knower of the Vedas.
The Supreme Personality of Godhead said: It is said that there is an imperishable banyan 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.
. . .
ऊर्ध्वमूलमध:शाखमश्वत्थं प्राहुरव्ययम् ।
छन्दांसि यस्य पर्णानि यस्तं वेद स वेदवित् ॥ १ ॥