Are "the Beneficent," "the Sufficient," and "the Preventer" among the correct Beautiful Names of Allah?

"Al-Kafi" (The Sufficient) is one of Allah's Beautiful Names according to the majority of scholars. It is mentioned in the Holy Quran in a restricted sense, and in weak hadiths, yet many imams have considered it among them.

As for "Al-Mani'" (The Preventer) and "An-Nafi'" (The Propitious), they are mentioned in conjunction with "Al-Mu'ti" (The Giver) and "Ad-Darr" (The Distressor) respectively ("Al-Mu'ti Al-Mani'" and "Ad-Darr An-Nafi'"). This is because mentioning them individually might imply imperfection. Some scholars have counted them among the Beautiful Names when used in this conjunction. There is evidence for this in hadiths, and their mention has been found in the books of many imams.