حَتَّى إِذَا سَلَخَا جُمَادَى سِتَّةً ۞ جَزْءًا فَطَالَ صِيَامُهُ وَصِيَامُهَا
They passed six months of the cold season without taking water; the period of abstention from drinking became long for both male and female.
Salakhā describes the passage of a period. Jumādā is associated here with the cold season in the commentary. Jazʾan concerns refraining from water and ṣiyām similarly denotes abstention from drinking; this is not the technical religious fast.