احسن الله اليكم , Ustadh, if a person forgets to perform نضح after having intimacy with spouse and has مذي, he remembers after having prayed a few prayers - Do they them perform نضح and then make all those prayers up. جزاكم الله خير وبارك الله فيكم

Ustadh AbdulAziz al-Haqqan

The question is so broad if you mean there was no penetration and he also did not finish in another way and there is mathi, yes he repeats all of these salahs after purifying himself.