If Someone Is Praying Nafal Salah While Iqamah Is Called For Fard
Farz salah takes precedence over nafal salah. Therefore, when iqamat of farz salah starts, one should complete their salah if time permits, otherwise one should discontinue nafal salah and join farz salah. One can pray nafal namaz after farz salah, if one wants to. https://sunnah.com/muslim:710a https://sunnah.com/muslim:710b