\input luaotfload.sty
\font\0=name:Scheherazade:mode=node;script=arab;salt=0 at 10pt
\font\1=name:Scheherazade:mode=node;script=arab;salt=1 at 10pt
\font\2=name:Scheherazade:mode=node;script=arab;salt=2 at 10pt
\0 \char"06DD
\1 \char"06DD
\2 \char"06DD

\font\0=name:Scheherazade:mode=base;script=arab;salt=0 at 10pt
\font\1=name:Scheherazade:mode=base;script=arab;salt=1 at 10pt
\font\2=name:Scheherazade:mode=base;script=arab;salt=2 at 10pt
\0 \char"06DD
\1 \char"06DD
\2 \char"06DD
\bye
\bye
