On Friday morning I woke up and pulled out some clothes from my cupboard for Friday prayer. I chose one out of them and the rest before keeping them back into the cupboard I by mistakenly kept it on my lap so those clothes came into contact of the clothes i was wearing, then I kept those in the cupboard. Later I found that last night I had experienced nightfall and could see the stains on my clothes, but the stains were dry. So it came into my mind about the paak/pure clothes which i had kept on my lap.so the clothes which i had kept on my lap become impure? So I have to wash them again? Kindly reply.