Continual rain at Mirpur stadium washed out the forth day`s play in the second and final Test between Bangladesh and South Africa at the Sher-e-Bangla stadium in Dhaka on Sunday.The play was scheduled to begin at 9:30am Sunday at Mirpur Sher-e-Bangla National Stadium. Morning showers delayed the start of the fourth day.Earlier, the second and third day`s play was called off due to the relentless rain in Dhaka.