Full Arabic — click to listen
fa-atbaʿa
So he followed
REM – prefixed resumption particle fa + V – 3rd person masculine singular (form IV) perfect verb
Root Link: ت ب ع
sababan
a course
N – accusative masculine indefinite noun
Root Link: س ب ب

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