Srimad Bhagavatam
ऋग्यजुःसामाथर्वाख्या वेदाश्चत्वार उद्धृताः । इतिहासपुराणं च पञ्चमो वेद उच्यते ॥ १-४-२० ॥
The four divisions of the original sources of knowledge ॥ the Vedas॥ were made separately. But the historical facts and authentic stories mentioned in the Purāṇas are called the fifth Veda. ॥ 1-4-20 ॥
english translation
मूल ज्ञान के स्रोतों (वेदों) के चार पृथक् विभाग किये गये। लेकिन पुराणों में वर्णित ऐतिहासिक तथ्य तथा प्रामाणिक कथाएँ पंचम वेद कहलाती हैं। ॥ १-४-२० ॥
hindi translation
RgyajuHsAmAtharvAkhyA vedAzcatvAra uddhRtAH । itihAsapurANaM ca paJcamo veda ucyate ॥ 1-4-20 ॥
hk transliteration by Sanscript