as for this book : "al-imamah wa'l siyasah" many scholars have rejected the claim that it is his book. dr. ukkashah in the preface of ibn qutaybah's book: al-ma'arif cites the following reasons why this book cannot be ascribed to ibn qutaybah al-dinawari: ---- 1. none of the biographers who listed his works mentioned this book among them. [aH: we will see how ibn nadim who is closest to his time listed nearly 30-40 books in his fihrist and didn't mention the "imamah".] 2. the author book mentions that he was present in damascus; even though ibn qutaybah never left baghdad except for dinawar (to where he relocated). 3. the author narrates from ibn abi layla; and ibn abi layla was a judge in kufa (qadi) in the year 148 AH, a good 65 years before ibn qutaybah was born! 4. the author reports the victory of muslim armies in spain [andalus] from a woman who says witnessed it. and spain was conquered approximately 120 years before the birth of ibn qutaybah. 5. the author mentions musa ibn nusayr conquering marrakesh (the city), even though it was founded by yusuf ibn tashfin, the sultan of the murabitun in the year 455 AH; ibn qutaybah passed away nearly 200 years before this in 276 AH. ---- a researcher points out some more things (i do not know anything about the author) in a short risalah of 32 pages. which i checked myself. 6. the book doesn't match the style of ibn qutaybah al-dinawari who writes elaborate prefaces introducing the book and its contents. [aH: and i checked myself in nearly a dozen books that i have that this observation is true]. 7. there are a number of historical errors in prominent events and personalities. 8. there are errors of language when ibn qutaybah was a prominent linguist and his book adab al-kuttab is a sort of style manual for writers! check the risalah here: https://archive.org/details/waq34590 Allah ta'ala knows best.