ٱلَّذِى هُمْ فِيهِ مُخْتَلِفُونَ
Sentence structure
ٱلَّذِى describes the great news mentioned in the preceding ayah. Its relative clause is the nominal sentence هُمْ فِيهِ مُخْتَلِفُونَ: هُمْ is the subject and مُخْتَلِفُونَ its predicate, with فِيهِ linked to the predicate.
ٱلَّذِى — which / that which
Grammar: A masculine singular relative pronoun, indeclinable but in the genitive position as an adjective of ٱلنَّبَإِ.
هُمْ — they
Grammar: A third-person masculine plural detached pronoun functioning as the nominative subject of the relative clause.
فِيهِ — concerning it
Grammar: فِى is a preposition and the attached هِ is a third-person masculine singular pronoun in the genitive position, referring to the news. The phrase is linked to مُخْتَلِفُونَ.
مُخْتَلِفُونَ — differing
Grammar: A form VIII active participle, masculine plural and nominative; it is the predicate of هُمْ.