The paper investigates the impacts of heat exchange and magnetic field on the boundary layer flow of Casson fluid above a linearly stretching sheet. The researchers have introduced analytical and numerical solutions for the momentum and energy equations by transforming the equations into the system of ordinary differential equations with the aid of similarity transformations as a technique. The velocity and temperature profiles for pertinent parameters: Casson fluid constraint, Chandrasekhar number, Prandtl number, and thermal conductivity, presented in the tabular form and discussed by plotting graphs. The outcomes showed that the analytical method had a good agreement with the numerical solutions obtained through MATHEMATICA software. The influence of the wall shear stress and the Prandtl number increases while the boundary layer thickness decreases. Current investigation has applications in the extraction of unrefined petroleum from oil-based products and magnetic materials processing.