Allah has created many things with different shapes and properties which we utilize in our daily life. We often use the material goods in their actual and real forms, but many times, we consume them as partial agent in a substance. In a compound, the various elements lost their properties and take new shapes. In chemical science, the formation and modification of different compounds is a known concept among the scholars, but another thing that is the legitimacy of these compounds. In Islamic point of view is a considerable issue. In Islamic teachings the change in shape and property has a legal impact on rulings. It is necessary to explore the issue of medication in structure of objects and its legitimacy. This research paper deals with the subject matter. This contains the literal meaning of “Mahiyat” and it’s standard. Moreover, the various examples have been mentioned the explains the different types of modification.