How sound are the chains of transmission (isnad) for the hadiths mentioned in Musannaf Ibn Abi Shaybah that include supplications (du'a) and remembrances (adhkar) for facing oppression and tribulations?

The mentioned narrations (athar) are mawquf (وقف -وقف), meaning they are sayings or actions attributed to companions or successors, not prophetic hadiths. The narration of Abu Mijlaz is authentic and mawquf. The chain of narration for the narration of Alqamah ibn Marthad has not been evaluated. Ibn Mas'ud's mawquf supplication suffices instead of them: "O Allah, Lord of the seven heavens, and Lord of the Magnificent Throne, be my protector from so-and-so, son of so-and-so, and his factions among Your creation, lest any of them transgress against me or oppress me. Glorified is Your protection, and exalted is Your praise, and there is no god but You." The third narration is similar to the established prophetic supplication for distress: "There is no god but Allah, the All-Knowing, the Forbearing. There is no god but Allah, Lord of the Magnificent Throne. There is no god but Allah, Lord of the heavens, and Lord of the earth, Lord of the Noble Throne." The chain of narration for the fourth narration has not been evaluated. It is permissible to supplicate with these narrations since they are supplications, but the prophetic invocations (awrad) are more preferable.