Sri Lanka lost their last three wickets without scoring any run in 16 balls on the fifth morning.
Azhar Ali, Babar Azam tons, Naseem Shah three-for put Pakistan on victory path
Masood and Abid shared a stand of 278 for the opening wicket, Pakistan lead 315 with 8-wicket in hand.
Shaheen Afridi, Mohammad Abbas and Dinesh Chandimal star on day of fluctuating fortunes.
Embuldeniya, Fernando and Kumara shared the spoils to bowl Pakistan out for 191
Dhananjaya de Silva (102) had been the biggest contributor to the Sri Lanka total.
No respite from weather as day four gets called off
SL 282/6 as truncated Day 3 called off in Rawalpindi. Only 5.2 overs were possible as rain and bad light joined hands.
Only 18.2 overs were possible as rain and bad light joined hands.
Sri Lanka scored 202 for five on day one after a good start in first Test against Pakistan on Wednesday.