[root@hostname ~]# zpool scrub tank
[root@hostname ~]# zpool status
  pool: tank
 state: ONLINE
  scan: scrub repaired 0B in 0h56m with 0 errors on Mon Aug 12 12:40:46 2019
config:

        NAME        STATE     READ WRITE CKSUM
        tank        ONLINE       0     0     0
          raidz2-0  ONLINE       0     0     0
            disk1   ONLINE       0     0     0
            disk2   ONLINE       0     0     0
            disk3   ONLINE       0     0     0
            disk4   ONLINE       0     0     0
            disk5   ONLINE       0     0     0
            disk6   ONLINE       0     0     0
            disk7   ONLINE       0     0     0
            disk8   ONLINE       0     0     0
            disk9   ONLINE       0     0     0
            disk10  ONLINE       0     0     0

errors: No known data errors


P.S. you can stop the scrubbing with: zpool scrub -s tank
[root@hostname ~]# zpool scrub -s tank