Introduction: Shaykh Thanvi of Deobandi sect wrote knowledge which is gained through another cannot be deemed Ilm al-Ghayb and this belief is need of evidential support. Muslims believe knowledge which reaches through means of another, such as Jibraeel (alayhis salam), is also Ghayb. And Deobandi Shaykh also stated to say a creation has knowledge of Ghayb is prohibited because due to absence of evidence there is danger of falling into Shirk by attributing knowledge of Ghayb to a creation. We Mu