Amazon’s CEO has told workers “it’s probably not going to work out” for them at the tech company unless they are prepared to come into the office at least three days a week.

Andy Jassy made the statement in a meeting where he made clear his frustration that some employees were not coming in three days a week, despite that being Amazon’s official policy. The comments were first reported by Insider.

He said: “It’s past the time to disagree and commit. If you can’t disagree and commit … it’s probably not going to work out for you at Amazon because we are going back to the office at least three days a week.”