Regarding "As We sent down upon the dividers" [Hijr 15:90], he said, "They believed in part and disbelieved in part. They are the Jews and the Christians."
{كما أنزلنا على المقتسمين} قال: آمنوا ببعض وكفروا ببعض، اليهود والنصارى.
Bukhari narrated it in the Tafsir (4706), from Ubaydullah bin Musa, from Amash, from Abu Dhubyan, from Ibn Abbas, and he related it.