Neville also warned Rashford that his reputation is now at stake after flouting club rules on multiple occasions.
"For me, going out for a drink or a night out is something every football player should and will do, so I've got absolutely no problem with that. They need to enjoy themselves," he said.
"But it's all about choices and timing and I said this after the Manchester City game at home. We got beat at home against City and he went out that night to Chinawhite, I think it was his birthday. Then they had a game against Newcastle in the Carabao Cup after that and I just said 'Look, choose your time'. United had just had a winter break and a few weeks off, so that was a better moment for him to go out.
"If you do it too many times, people wonder what is going on in your life, so he just needs to relax, calm down, choose when to go out and get back to playing football at the levels he can."