Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Week:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

The seven-day week was known in India by the 6th century, referenced in the Pañcasiddhāntikā.[citation needed] Shashi (2000) mentions the Garga Samhita, which he places in the 1st century BCE or CE, as a possible earlier reference to a seven-day week in India. He concludes "the above references furnish a terminus ad quem (viz. 1st century) The terminus a quo cannot be stated with certainty".[1][2]