What is the scholarly status of the book of Sulaym ibn Qays?

Answer

In the name of Allah, as for the book of Sulaym ibn Qays, it has been narrated from the Imams (peace be upon them) that they praised this book. There is no doubt about the trustworthiness of Sulaym ibn Qays, for he was among the companions of the Prophet (peace be upon him and his family). Some scholars have cast doubt on whether the printed version available to us today is truly attributed to Sulaym ibn Qays, but their evidence is weak and baseless. Some researchers have undertaken the task of verifying the book and have exerted great effort in doing so; therefore, it can be benefited from. Allah is the Guide.