The surviving text covers only up to the end of sura 18, 'The Cave'; more material is quoted by later Imami scholars,[1] for instance Tabrisi.
[2] As of the 18th century, al-Majlisi and Al-Hurr al-Aamili were not aware of the complete text of Ayyashi's work.
Many of its single-verse commentaries also exist, independently of ʿAyyashi, in al-Kulayni's al-kafi and al-Hakim al-Hasakani's Shawahid al-tanzil.
[1][4][5] ʿAyyashi accepted hadiths that held that there had been alteration (tahrif) in the ʿUthmanic mushaf of the Qur'an.
[1] The first complete translation into English of the Tafsir al-Ayyashi was published in 2020 by the AMI Press as a bi-lingual scholarly text edition.