Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 3
Sanskrit:
स च वृन्दावनगुणैर्वसन्त इव लक्षित: ।यत्रास्ते भगवान् साक्षाद् रामेण सह केशव: ॥ ३ ॥
ITRANS:
sa ca vṛndāvana-guṇairvasanta iva lakṣitaḥyatrāste bhagavān sākṣādrāmeṇa saha keśavaḥ
Translation:
Nevertheless, because the Supreme Personality of Godhead was personally staying in Vṛndāvana along with Balarāma, summer manifested the qualities of spring. Such are the features of the land of Vṛndāvana.