AhsanaAllāhu 'alaykum. I come across many brothers NOT saying JazaakaAllaahu khayran جزاك الله خيرا, instead they say JazaakaAllaahu khayr جزاك الله خير The second way of saying is grammatically incorrect due to it being nakirah. Is this a matter that requires rectification? In enjoining good?

Ustadh AbdulAziz al-Haqqan

Don't you think that you are digging way too deep.