ub and hu ' s ▁comment ary , ▁is : ▁ 1 : ▁▁▁ ▁The ▁D h ā t us ▁ 2 : ▁▁▁ ▁The ▁Ind ri y as ▁ 3 : ▁▁▁ ▁Re ality ▁of ▁S uffer ing ▁ 4 : ▁▁▁ ▁Re ality ▁of ▁Origin ▁of ▁S uffer ing ▁ 5 : ▁▁▁ ▁The ▁Lat ent ▁De file ments ▁ 6 : ▁▁▁ ▁The ▁Path s ▁and ▁Pers ons ▁ 7 : ▁▁▁ ▁Wis dom ▁ 8 : ▁▁▁ ▁The ▁Abs or ptions ▁ 9 : ▁▁▁ ▁Ref ut ation ▁of ▁the ▁P ud g ala ▁ ▁Kar ma ▁Chapter ▁four ▁of ▁the ▁Ko ś a ▁is ▁devoted ▁to ▁a ▁study ▁of ▁kar ma , ▁and ▁chap ters ▁two ▁and ▁five ▁contain ▁form ulation ▁as ▁to ▁the ▁mechanism ▁of ▁f ru ition ▁and ▁ret ribution . ▁This ▁became ▁the ▁main ▁source ▁of ▁understanding ▁of ▁the ▁perspective ▁of ▁early ▁Buddh ism ▁for ▁later ▁Mah ā y ā na ▁ ▁philosoph ers . ▁ ▁Vas ub and hu ▁elabor ates ▁on ▁the ▁causes ▁and ▁conditions ▁involved ▁in ▁the ▁production ▁of ▁results , ▁kar ma ▁being ▁one ▁source ▁of ▁causes ▁and ▁results , ▁the ▁" ri pen ing ▁cause " ▁and ▁" ri pen ed ▁result ." ▁Gener ally ▁speaking , ▁the ▁conditions ▁can ▁be ▁thought ▁of ▁as ▁auxili ary ▁causes . ▁Vas ub hand hu ▁draw s ▁from ▁the ▁earlier ▁Sar v ā st iv ā din ▁Ab h id har ma ▁treat ises ▁to ▁establish ▁an ▁elaborate ▁Buddh ist ▁et i ology