An unbeaten century stand between Saud Shakeel and Agha Salman rescued Pakistan from a precarious 101-5 on the second day of the rain-hit opening Test on Monday.
In response to Sri Lanka's 312, Pakistan reached 221-5 when rain stopped play with the tourists still 91 runs behind.
Sri Lanka's left-arm spinner Prabath Jayasuriya took three wickets, including skipper Babar Azam.
