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wa-innahu
And indeed it
CONJ – prefixed conjunction wa (and) + ACC – accusative particle inna + PRON – 3rd person masculine singular possessive pronoun ha
Root Link: ا ن ن
laʿil'mun
surely (is) a knowledge
EMPH – emphatic prefix lām + N – nominative masculine indefinite noun
Root Link: ع ل م
lilssāʿati
of the Hour
P – prefixed preposition lām + DET – determiner prefix al + N – genitive feminine noun 
Root Link: س و ع
falā
So (do) not
REM – prefixed resumption particle fa + NEG – negative particle
Root Link: ل ا
tamtarunna
(be) doubtful
V – 2nd person masculine plural (form VIII) imperfect verb + EMPH – emphatic suffix nūn
Root Link: م ر ى
bihā
about it
P – prefixed preposition bi + PRON – 3rd person feminine singular personal pronoun hā
Root Link: ب
wa-ittabiʿūni
and follow Me
CONJ – prefixed conjunction wa (and) + V – 2nd person masculine plural (form VIII) imperative verb + PRON – subject pronoun waw + PRON – 1st person singular object pronoun nī
Root Link: ت ب ع
hādhā
This
DEM – masculine singular demonstrative pronoun
Root Link: ه ا ذ
ṣirāṭun
(is the) Path
N – nominative masculine indefinite noun
Root Link: ص ر ط
mus'taqīmun
Straight
N – nominative masculine indefinite (form X) active participle
Root Link: ق و م

Acknowledgements:

Single-Word Audio has been made possible through software provided by Arabic NLP

James Ada's concordance work; his research can be found at www.organizedQuran.com
Note: James is now a member of the IslamAwakened Continuity Board