Social media has become one of the greatest means of communication between individuals in this time, and considerable information may be sent through these means, and these sent messages may contain something that offends to the individuals.One of these application programs is WhatsApp, which has become a means of communication between individuals and sends significant messages and information through this program.There has been much debate about the extent to which social media platforms are considered as proof after their appearance, which prompted the Saudi regulator to work to find a clear system that removes the ambiguity surrounding the extent to which these messages are considered as proof as a means of evidence.Social media did not exist in the Saudi system, and it was viewed as mere evidence to be relied upon, and did not rise to the level of evidence relied upon.After the issuance of the Saudi Evidence System, digital evidence, including social media, became as proof as written evidence.In this paper I will address:First: Explaining the concept of digital evidence in the Saudi system and Islamic jurisprudence.Second: Introducing the WhatsApp application and the program’s advantages and disadvantages.Third: The proof of digital evidence in Islamic jurisprudence and in the Saudi system, including the WhatsApp application.