This hadeeth is one of the origins of Islam. The jurists have extracted from it jurisprudential rules that collaborate with each other. The scholars said: The certainty is not waived by doubt. They said: The certainty is not waived except with certainty. And said: It is essential to keep the original ruling and to ignore the doubt. Another rule states: things are to remain on their original status unless there is a certain fact that changes the original status. Another rule rstates : Doubt does not count. All the wordings are close in meaning.