Is it obligatory to inform the wife before marriage about the short length of the penis when flaccid? Will this negatively affect her when she sees it? And is it her right to be informed of this?

The majority of scholars hold that the defects which must be disclosed before marriage, and which establish the right to annulment, are those that prevent sexual intercourse or are repulsive and contagious diseases such as leprosy and elephantiasis. Based on this, it is not obligatory to inform the prospective wife of the aforementioned matter, nor is it necessary to enable her to see the private parts, especially if the matter is merely delusions and not a real defect.