wa-ammā
But as for
REM – prefixed resumption particle wa + EXL – explanation particle
Root Link: ا م م ا
kitābahu
his record
N – accusative masculine noun + PRON – 3rd person masculine singular possessive pronoun ha
Root Link: ك ت ب
ẓahrihi
his back
N – genitive masculine noun + PRON – 3rd person masculine singular possessive pronoun ha
Root Link: ظ ه ر