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 Shiva (Judaism):

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

"

A number of Biblical accounts describe mourning for fixed periods; in several cases, this period is seven days. For example, after the death of Jacob, his son Joseph and those accompanying Joseph observed a seven-day mourning period.[1] The seven-day period of mourning that Joseph underwent was depicted by the sages before the revelation at Mount Sinai.[citation needed] In the Book of Job, it is stated that Job mourned his misfortune for seven days. During this time, he sat on the ground, with his friends surrounding him.[2]