تُسْقَىٰ مِنْ عَيْنٍ ءَانِيَةٍۢ
Sentence structure
تُسْقَىٰ is a passive imperfect whose understood deputy subject refers to the faces. مِنْ عَيْنٍ is linked to it, and ءَانِيَةٍ describes the spring.
Ayah summary
They will be given water from a boiling spring.
تُسْقَىٰ — They will be given to drink
Grammar: A third-person feminine-singular passive imperfect; its deputy subject is understood from the preceding faces.
مِنْ — from
Grammar: A preposition governing the following noun in the genitive. This phrase is linked to «تُسْقَىٰ».
عَيْنٍ — a spring
Grammar: An indefinite feminine-singular genitive noun governed by مِنْ.
ءَانِيَةٍۢ — boiling
Grammar: An indefinite feminine-singular genitive active-participle adjective of عَيْنٍ.