Pakistan enforced the follow-on after Zimbabwe was bowled out for 132 at lunch on the third day of the second Test at Harare Sports Club on Sunday.
Fast bowler Hasan Ali had career-best figures of five for 27.
Pakistan, first innings, 510-8 declared
Zimbabwe, first innings, 132 (R. Chakabva 33; Hasan Ali 5-27, Sajid Khan 2-39).
Match situation: Pakistan lead by 378 runs on the first innings. Pakistan lead series 1-0