[Misiur]

Assuming you have 1 npc on whole server:

pawn Code:

new ServantNPC;
//(...)
public OnPlayerConnect(playerid) {
    if(IsPlayerNPC(playerid)) ServantNPC = playerid;
    return 1;
}
//(...)
public OnPlayerCommandText(playerid, cmdtext[])
{
    if (!strcmp("/bring", cmdtext, true, 6)) {
        SetPlayerPos(ServantNPC, x,y,z);
        return 1;
    }
    return 0;
}