خِتَـٰمُهُۥ مِسْكٌۭ ۚ وَفِى ذَٰلِكَ فَلْيَتَنَافَسِ ٱلْمُتَنَـٰفِسُونَ
Sentence structure
خِتَـٰمُهُۥ مِسْكٌ is a nominal clause describing رَحِيقٍ. In the resumed clause, فِى ذَٰلِكَ is linked to يَتَنَافَسِ; command-lām makes that Form VI imperfect jussive, and ٱلْمُتَنَـٰفِسُونَ is its subject.
Ayah summary
Its seal will be of musk, and people should strive for this blessing.
خِتَـٰمُهُۥ — Its seal
Grammar: A nominative topic; attached هُۥ is its genitive possessor. The nominal clause describes رَحِيقٍ.
مِسْكٌۭ ۚ — (will be of) musk
Grammar: An indefinite nominative noun functioning as the predicate of خِتَـٰمُهُۥ.
وَفِى — And for
Grammar: وَ is resumptive and فِى a preposition; the phrase is linked to يَتَنَافَسِ.
ذَٰلِكَ — that
Grammar: A masculine-singular demonstrative in the genitive position after فِى.
فَلْيَتَنَافَسِ — let aspire
Grammar: فَ resumes/causes, لْ is command-lām, and يَتَنَافَسِ is a Form VI masculine-singular imperfect made jussive by it. The final kasra avoids two consonants meeting.
ٱلْمُتَنَـٰفِسُونَ — the aspirers
Grammar: A definite Form VI masculine-plural active participle functioning as the subject of يَتَنَافَسِ, nominative with wāw; final nūn is nominal.