Concept:The Muwatta of Imam Malik uniquely combines prophetic hadith with the established practices of the people of Madinah.
Explanation:Most major hadith collections, such as Sahih Bukhari and Sahih Muslim, record only the sayings and actions of the Prophet Muhammad.
The Muwatta of Imam Malik is different; it is an early compendium of Islamic law.
Besides ahadith, Imam Malik recorded the customary practices and legal rulings of the people of Madinah.
The people of Madinah were the direct heirs of the Prophet's community, so their consistent practice was treated as a valuable legal source.
Thus, the Muwatta stands out as the book that contains reports on the practices of the people of Madinah alongside ahadith.
Answer:D. Muwatta Malik.