▁and ▁whether ▁Abraham ▁ben ▁Isaac ▁of ▁L un el ▁( R AB a D ▁II ) ▁was ▁among ▁them , ▁be ▁determined . ▁It ▁is ▁certain ▁that ▁Abraham ▁ben ▁Isaac ▁knew ▁Jud ah ▁personally ▁and ▁consult ed ▁him ▁in ▁difficult ▁cases . ▁Jud ah ▁once ▁had ▁a ▁controvers y ▁with ▁his ▁learned ▁fellow ▁citiz en ▁Abraham ▁ben ▁ Ḥ iy ya . ▁The ▁latter , ▁it ▁seems , ▁tried ▁to ▁post p one ▁a ▁wed ding ▁because ▁the ▁stars ▁displayed ▁unf avor able ▁om ens , ▁while ▁Jud ah ▁held ▁such ▁a ▁course ▁to ▁be ▁contrary ▁to ▁law , ▁since ▁the ▁regarding ▁of ▁om ens ▁is ▁forb idden ▁in ▁the ▁Script ures . ▁ ▁Works ▁Jud ah ▁was ▁one ▁of ▁the ▁greatest ▁cod ifiers ▁of ▁the ▁Middle ▁A ges . ▁With ▁the ▁exception ▁of ▁a ▁few ▁fragments , ▁his ▁hal akh ic ▁writ ings ▁ ▁have ▁been ▁lost . ▁However , ▁they ▁are ▁often ▁c ited ▁as ▁author itative ▁by ▁Rab ad ▁II , ▁Isaac ▁ben ▁Abb a ▁Mari ▁( for ▁both ▁of ▁whom ▁he ▁is ▁simply ▁" Ha R av ," ▁or ▁" Ha R av ▁ha Me ḥ ab ber "), ▁Abraham ▁ben ▁David ▁( R AB a D ▁III ), ▁and ▁Z er ah iah ▁ben ▁Isaac ▁ha - Le vi . ▁ ▁The ▁works ▁of ▁Ma imon ides ▁and ▁Jacob ▁ben ▁Ash er , ▁published ▁a ▁century ▁later , ▁caused ▁Jud ah ' s ▁code x ▁to ▁be ▁neglect ed , ▁although ▁individual ▁sch ol ars ▁down ▁to ▁the