لَا غَيْرِي
Not anyone other than me.
وَحْدِي
I alone.
Adding «lā ghayrī» explicitly denies another agent; «waḥdī» stresses the absence of partners. These expressions can make the intended exclusion explicit and remove doubts that context-sensitive fronting alone might leave.
The important distinction is between restriction inferred from word order and restriction stated overtly by additional expressions.