How to redirect this url?

Hello All
Can any one tell me how to redirect the url having comma and space after .html
like : <url>.html,<space>

i have tried this and none of this working
RewriteRule ^abc\/xyz\.html,$ /abc/xyz.html [r=301,nc]
RewriteRule ^abc\/xyz\.html\,\ $ /abc/xyz.html [r=301,nc]
RewriteRule ^abc\/xyz\.html,\ $ /abc/xyz.html [r=301,nc]
RewriteRule ^abc\/xyz\.html\, $ /abc/xyz.html [r=301,nc]

Would there be anything other than space and comma after .html, to be treated differently?

Would there be anything other than space and comma after .html, to be treated differently?

Yes. after .html it is treating differently atleast for my website's url.