I have read some controversial views about the meeting of Ad-Dhahak and Ibn Abbas. In one source, Ad-Dahak explicitly denies ever narrating anything from Ibn Abbas.
Some people cite Tafsir Ibn Kathir vol. 2 p. 71 and say that it is written in it that Ad-Dahak never met or narrated anything from Ibn Abbas.
According to a narration in al-Jarh wat-Ta'dil by Ibn Abi Hatim ar-Razi, Ad-Dahak never met Ibn Abbas. In this book we can read,
Ibn Abi Hatim narrates with an authentic isnad from 'Abd al-Malik ibn Abi Maysarah that he asked ad-Dahhak: "Did you personally hear anything from Ibn 'Abbas?" Ad-Dahhak replied in the negative. 'Abd al-Malik then asked him: "So this which you narrate (from him), from whom did you take it?" Ad-Dahhak replied: "From this one and that one."
However, Imam Ibn Hajr has written in his "Tahdheeb Al-Tahdheeb" that Ad-Dahak was a neighbour of Ibn Abbas.
"Abu Janab al-Kalabi narrated that al-Dahhak said: 'I neighboured Ibn Abbas for seven years."
Ad-Dahak is found almost 34 times in Asbab-ul-Nuzul by Al Wahidi and he has narrated many narrations from Ibn Abbas.
Did Ad-Dahak never met Ibn Abbas?