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wa-annahu
And that He
CONJ – prefixed conjunction wa (and) + ACC – accusative particle anna + PRON – 3rd person masculine singular possessive pronoun ha
Root Link: ا ن ن
huwa
[He]
PRON – 3rd person masculine singular personal pronoun huwa
Root Link: ه و
rabbu
(is the) Lord
N – nominative masculine noun
Root Link: ر ب ب
l-shiʿ'rā
(of) Sirius
DET – determiner prefix al + PN – nominative feminine proper noun 
Root Link: ش ع ر

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