Authentically attributed books to the salaf (first three generations) and their assurity

**Authentically Attributed Books from the Salaf: Mainly Authorship and Transmission** Assalamualaikum, The books attributed to the early generations (Sahabah, Tabi‘in, and Atba‘ al-Tabi‘in). Some of these works are well-documented as having been written or dictated by the authors. Imam Malik's Muwatta is widely accepted as a book that can be reliably traced back to him through a single narrator (yahya bin yahya), ensuring its authenticity as his direct work.I've heard similar things about Maghazi of Musa ibn ‘Uqbah, which is also considered a direct contribution of his but not sure if that's true, Allahuaalam. But for instance, discussions on this forum have pointed out that Tafseer Mujahid is not truly a written work of Mujahid himself but rather a collection compiled through many different narrators in its chain. This raises an important question about attribution: Can we call a book the work of a scholar if it is merely a collection of narrations attributed to him rather than something he compiled himself? If we were to compile all the ahadith that include Abu Huraira in the chain and label them as “**Abu Huraira’s book**”, that would be incorrect. This is because the role of an author like Imam Bukhari was not merely to collect narrations but also to arrange them purposefully—through chaptering, sequence selection, and the placement of opening and closing ahadith—beyond its raw content. **Other Authentically Written Books from the Salaf** This brings us to the central question: *What other books from the earliest generations of Islam(first 3), Tafseers, Seerahs, Ahadith Collections or other works can be confidently attributed to their authors?* If we consider Imam al-Shafi‘i as an Atba‘ al-Tabi‘in, we do have clearly documented books like Al-Risalah and Al-Umm, then ofcourse the Muwatta and Maghaazi or Ibn 'Uqbah. But beyond these, identifying works or similar writings from this period is challenging. For instance: Tafseer Ibn Jurayj – Is it a direct book authored by Ibn Jurayj himself, I have found it difficult to verify this. Tafseer Maqatil ibn Sulayman – Does an authentic version of this work exist, and was it actually written by him? Tafseer Sufyan al-Thawri – Can we confidently say this is his book, or is it another case of later transmission and compilation? The Virtues of Makkah (Sheikh Hasan Al Basri) - is it truly by him? **SUMMARIZED QUESTION** Are there any books from the Companions, the Tabi‘in, or the Atba‘ al-Tabi‘in that we can be certain were truly authored or dictated by them? If so, which ones? And in cases where authorship is disputed, how can we determine whether a work is genuinely their book or merely a later compilation of their statements? Looking forward to insights on this topic! JazakAllah