सा गोप्रधानदेशत्वात्सर्वा श्रीमथुरोच्यते ।
गोलोक इति गूढोऽपि विख्यातः स हि सर्वतः ॥
sā go-pradhāna-deśatvāt sarvā śrī-mathurocyate |
goloka iti gūḍho’pi vikhyātaḥ sa hi sarvataḥ ||
(Bṛhad Bhāgavatāmṛta: 2.5.80)
“[Śrī Nārada along with Uddhava to Gopa Kumāra:] Śrī Mathurā—that [region] in entirety [i.e., including the whole of the land of Vraja]—is called Goloka because of [its] being a region wherein cows (go) are pre-eminent. Although confidential, it is certainly renowned everywhere.”