Problem creating Stored Procedure

I am trying to create following procedure in DB2 through Iseries Navigator, 
(Run Sql Script Editor) and it says statement ran successfully
but when I check my library, or try to drop that procedure, system says, 
procedure does not exist.

Create Procedure LUQMAN.Asset
(IN Dt1 Date, IN Dt2 Date)
Language Sql Reads Sql Data
P1:Begin
Declare C1 Cursor WITH RETURN for
select a.acode,rtrim(a.aname),
(select sum(amount) from trans
where acode like substr(a.acode,1,4) concat '%'
 and purdt <Dt1) OB,
sum(case when b.amount>0 and
purdt between Dt1 and Dt2
then b.amount else 0 end) Add,
sum(case b.type when '3' then
(case when purdt between Dt1 and Dt2
then b.amount else 0 end) else 0 end) Del,
sum(b.amount) Closing
from acc a,trans b
where b.acode like substr(a.acode,1,4)concat'%'
and a.mainid='0'
group by a.acode,a.aname;
Open C1;
End P1;

Any idea please ?

Best Regards,

Luqman