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wa-alladhīna
Those who
CONJ – prefixed conjunction wa (and) + REL – masculine plural relative pronoun
Root Link: ا ل ل ذ
hum
[they]
PRON – 3rd person masculine plural personal pronoun hum
Root Link: ه م
lilzzakati
of purification works
P – prefixed preposition lām + DET – determiner prefix al + N – genitive feminine noun 
Root Link: ز ك و
fāʿilūna
(are) doers
N – nominative masculine plural active participle
Root Link: ف ع ل

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