fa-atbaʿūhum
So they followed them
REM – prefixed resumption particle fa + V – 3rd person masculine plural (form IV) perfect verb + PRON – subject pronoun waw + PRON – 3rd person masculine plural object pronoun Ha
Root Link: ت ب ع
mush'riqīna
(at) sunrise
N – accusative masculine plural (form IV) active participle
Root Link: ش ر ق