Accidentally I deleted the messaging icon in my samsung galaxy S

accidentally I deleted the messaging icon in my samsung galaxy S duos (S7562). How can I retrieve the messaging icon again in my android mobile . Thanks for your cooperation.
mohan
I deleted it by dragging it into the Apps (Applications) icon
I found the messaging icon (shortcut) when I use Google (search) and write messaging . But I want to return the messaging icon shortcut to the home screen.