وَٱلسَّمَآءِ ذَاتِ ٱلرَّجْعِ
Sentence structure
وَ is the oath preposition and ٱلسَّمَآءِ its genitive oath noun. ذَاتِ is a genitive adjective annexed to ٱلرَّجْعِ.
Ayah summary
Allah swears by the sky that repeatedly returns rain.
وَٱلسَّمَآءِ — By the sky
Grammar: وَ is the oath preposition, ٱل the definite article, and سَّمَآءِ the genitive oath noun.
ذَاتِ — which
Grammar: A feminine-singular genitive adjective of ٱلسَّمَآءِ, annexed to ٱلرَّجْعِ.
ٱلرَّجْعِ — returns
Grammar: ٱل is the definite article; رَّجْعِ is the genitive complement of ذَاتِ.