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An unsteady Casson nanofluid with a stagnation point is considered along a radiated stretching surface depending on the heat source and convective condition. Moreover, the influence of magnetic field and the wall suction is considered with the slip condition. In view of these assumptions, a system of nonlinear partial differential equations (PDEs), have been formulated which are primarily converted to the dimensionless ordinary differential equations (ODEs). The MATLAB function bvp4c has been used to solve the resulting system of the ODEs. The resulting solutions have been determined as expressed by the velocity, friction drag, concentration, temperature, mass transfer and heat transfer of the nanofluids which are obtained under the influence of associated flow parameters. It is observed that the Sherwood number and the fluid concentration respectively enhances and decreases for the escalating values of the …