The singer-songwriter dismissed recent comments by Stephen Stills that the trio would not make another album together.
"Two things are happening. One - Stephen doesn't know the big picture," he told Music Radar. "And two - Stephen is very deaf. He may have misheard you, or he may have been answering the question he thought you asked.
"Crosby, Stills & Nash will do another record. We're right in the middle of one, Songs We Wish We'd Written."
The covers collection will include classic tracks such as 'Behind Blue Eyes' and 'Ruby Tuesday'.
The classic rock legends recently worked with producer Rick Rubin on a new record, which Nash described as "irritable".
"Rick said, 'There will only be one Beatles song'. [I replied] 'There'll only be one Beatles song if we decide there will be one Beatles song'. You know, like, 'Who the f**k are you to tell me?'"
While he described Rubin as "brilliant", Nash added that the group and the producer "just rubbed each other the wrong way".
"We felt like we had this guy who was telling us what to do all the time. I mean, who the f**k is Rick Rubin? I know he's sold millions of records, but who the f*k is he to tell Crosby, Stills & Nash what to do?
"Guide us - yes. Make suggestions - fantastic. 'Try it this way' - no problem. But don't tell us what to do. You can't."
Watch Crosby, Stills and Nash perform 'Love the One You're With' with James Taylor below: