What is the amount of mass ($rm kg$) that the Sun loses daily in the irradiation form?

Presumably you want to know the mass flow that is equivalent to the energy of the light emitted by the sun. I won't do the calculation for you (it is easy), but here is the approach. Look up the amount of light energy emitted by the sun, in joules per second. Divide that value by the square of the speed of light in meters per second. The result is the number of kilograms per second the sun loses in the form of light energy. Note, though, that the sun also loses mass via the "solar wind", consisting of ions and atoms moving outward from the sun in excess of the sun's escape velocity.