Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 32

Sanskrit:

स योजनशतोत्सेध: पादोनविटपायत: ।पर्यक्‍कृताचलच्छायो निर्नीडस्तापवर्जित: ॥ ३२ ॥

ITRANS:

sa yojana-śatotsedhaḥpādona-viṭapāyataḥparyak-kṛtācala-cchāyonirnīḍas tāpa-varjitaḥ

Translation:

That banyan tree was eight hundred miles high, and its branches spread over six hundred miles around. The tree cast a fine shade which permanently cooled the temperature, yet there was no noise of birds.

Purport:

Generally, in every tree there are bird nests, and the birds congregate in the evening and create noise. But it appears that this banyan tree was devoid of nests, and therefore it was calm, quiet and peaceful. There were no disturbances from noise or heat, and therefore this place was just suitable for meditation.