OK, found this:
//JS010 EXEC PGM=FABMMAIN
//STEPLIB DD DSN=IMSVS.DBT.SHPSLMD0,DISP=SHR
//DBDLIB DD DSN=WTSO.WNEG.DBDLIB,DISP=SHR
//PSBLIB DD DSN=WTSO.WNEG.PSBLIB,DISP=SHR
//ACBLIB DD DSN=WTSO.WNEG.ACBLIB,DISP=SHR
//*
//SYSIN DD *
PSB=CHASER
/*
//SYSOUT DD SYSOUT=*
//MAPOUT DD SYSOUT=*
//SYSPRINT DD SYSOUT=*
//SYSPUNCH DD SYSOUT=*
The third line of the output has:
PSBGEN:06/05/2006 09.42
Now, it's all up to YOU to find the equivalent IMSVS.DBT.SHPSLMD0 library at your shop. I would recommend you find an IMS compile, then look at the link/edit step. There will be a SYSLIN DD statement, and it will have a concatenated DSN that has a name like SYS.PROCLIB, or IMSVS.PROCLIB. Whatever that is, use the HLQ from that file name, do a 3.4 look up on it, and find 'DBT'. That should be the IBM IMS DataBase Tools (D.B.T. get it?).
Also, you can get the books for this utility at the IBM web site. Be sure to get the ones that match your version of IMS.