RIGHT OF PLEDGEE TO RETAIN THE THING PLEDGED

Art.  2098.  The  contract  of  pledge  gives  a  right  to  the creditor to retain the thing in his possession or in that of a third person to whom it has been delivered, until the debt is paid. (1866a) 

>  This right is limited only to the fulfillment of the  principal obligation for which the pledge was created