Follow these steps to find the correct Facebook URL:

1. Go to Facebook in any mobile browser and log in to your account.
2. Find the post you want to get the URL for.
3. Right click on date or time of any comment of the post and copy the URL.
4. Paste the URL into the desired location.

Here's how it looks:

If you're using the Facebook app:

1. Open the Facebook app and navigate to the post.
2. Click on the three dots in the upper right corner and choose "Save Link".
3. Go to your saved link and click on the three dots again.
4. Choose the option "Copy Link".
5. Paste the URL into the desired location.

That's it! You've successfully obtained the correct Facebook URL.

Check out Resources page for more information