Is it obligatory to wash a bed that a child sat on while wearing clothes with urine stains, given that no trace of impurity was apparent upon examination?

If you are unsure whether urine touched the bedding, you are not required to purify anything.

However, if you are certain that the part wet with urine touched the bedding, there is a difference of opinion regarding its defilement. Some scholars are of the view that impurity does not transfer in this case.

In any event, purifying the spot touched by the impurity is easy: water is poured over it until it covers the defiled area, thus purifying it. This is more cautious.

And if you act upon the opinion of those who do not consider impurity to transfer in this situation, we hope there will be no hardship upon you.