Full Arabic — click to listen
wal-arḍi
And the earth
CONJ – prefixed conjunction wa (and) + DET – determiner prefix al + N – genitive feminine noun 
Root Link: ا ر ض
dhāti
which
N – genitive feminine singular noun
Root Link: ذ و
l-ṣadʿi
cracks open
DET – determiner prefix al + N – genitive masculine noun
Root Link: ص د ع

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