Refresh master from detail

how to refresh master form if detail grid is navigated into from its form?
i have a master form and its detail is a grid. (when user clicks on add record in grid, and after adding comes back to grid), i want master to reload.
i tried sc_redir(master_form) in on navigate event in grid, but doesnt work.
goal is master should reload when grid reloads (or navigates back from grid-form to grid)