Some witnesses say, “I do not want to testify for fear that harm will befall me.” Is that permissible for them?

The questioner : One of the witnesses said, “I do not want to testify for fear that harm will befall me.” Is that permissible for him?The Shaykh : The scholars say that if the harm is unbearable, there is no harm in not testifying, but it is obligatory to give the testimony in another place. However, if the harm is bearable, such as the person against whom he testified becoming hostile toward him or something similar, it is not permissible to conceal the testimony.