The Muwatta' of Imām Mālik can be described as a book of

The question is asking about the contents of the Muwatta' of Imam Malik and provides four options to choose from. The Muwatta' of Imam Malik is a well-known book of Islamic jurisprudence and contains hadith, or sayings and actions of the Prophet Muhammad (peace be upon him), as well as legal rulings, or fiqh.

Option A, "Hadith and Fiqh," is the correct answer. The Muwatta' is often described as a book of hadith and fiqh because it contains a collection of hadiths, which Imam Malik compiled and organized by topic, and it also includes his legal opinions and rulings on various issues.

Option B, "Sīraℎ and Usūl al-Fiqh," is incorrect because the Muwatta' does not primarily focus on the life and times of the Prophet Muhammad (peace be upon him) or on the principles of Islamic jurisprudence, although these topics may be mentioned in passing.

Option C, "Fiqh and Tārīkh," is incorrect because although the Muwatta' does contain legal rulings and some historical anecdotes, it is primarily a collection of hadiths and their application to legal issues.

Option D, "Hadīth and Sīrah," is incorrect because while the Muwatta' does contain hadiths, it is not primarily a collection of the Prophet Muhammad's (peace be upon him) life and actions, which is what the term sīrah refers to.

In summary, the Muwatta' of Imam Malik is a book of hadith and fiqh, containing a collection of hadiths and legal rulings on various issues.