Zaha agreed a deal to join the champions in January for a fee in the region of £15million, before being loaned back to his boyhood club over the second half of the season to fulfil a dream which ended in Premier League promotion.
"Wilf, in those three (play-off) games, was the best player on the pitch, he's in a different league," said a proud and relieved Parish after his club's 1-0 extra-time victory.
"I honestly think he'll go to Manchester United and do really well, I really do.
"People are saying, 'Will you loan him back?'. I think he deserves his chance there, and I think he'll get it."