Spin bowler Yasir Shah took four wickets for Pakistan in South Africa's second innings. Picture: Getty Images
Left-arm spinner Nauman Ali took 5-35 for the hosts while Yasir Shah finished with 4-79.
Temba Bavuma was the last man out for 40.
Earlier, the Proteas had resumed their second innings on 187 for 4, holding a lead of 29 runs.
The second Test starts on February 4 in Rawalpindi.
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