explaining a non-ruling by a present description (تَعْلِيلُ الْحُكْمِ الْعَدمِيّ بِالْوَصْفِ الْوُجُودِيّ)
أصول الفقه
التعريف :
To explain the negation of something on account of the existence of something else, such as explaining that no zakat is due because the person concerned has a debt that takes up all his money.