Is it permissible to watch video clips of Ruqyah Sharia?

The basic rule for watching videos is permissibility as long as they are free from forbidden and religiously prohibited content. If the videos show people performing ruqya (Islamic exorcism/healing) that is lawful, there is no objection to watching them. However, if the ruqya is unlawful (for example, if it is not in Arabic and its meaning is not understood, or if it involves shirk [polytheism]), then it is not permissible to watch it, because everything whose viewing is forbidden is also forbidden to observe, as it constitutes aiding in sin.