They desired the URL so they might add the post to their e-mail newsletter using the Flashissue curation feature.
What seemed a simple demand turned out to be much more difficult considering that Facebook does not make it apparent where to find the URL for post.
1. Go to your Facebook page e.g. https://www.facebook.com/FlashIssue
2. Click the Date Stamp of the post you wish to find the URL for
3. The post will fill as it's own page and you can copy the URL e.g. https://www.facebook.com/FlashIssue/posts/928107223872038
Once you have the Facebook page URL you can plug it into Flashissue and drag it into your e-mail.
If you are utilizing the Flashissue Chrome extension you can clip the Facebook page URL for a faster way to obtain it in your email:.
What's more annoying is that there is no other way to discover an RSS feed for all your posts on a Facebook page. It appears like Facebook once offered this but withdrew it because it was being abused.
For the moment, you have to be satisfied with pulling private posts as pages.
Thus the article How To Find A Facebook Url thank you visiting from me hopefully can help you.