Having true and genuine love for the Messenger of Allah SAW is a divine command, and cultivating this love to the point that he becomes more beloved to one than one's very self was described by the Prophet e as the hallmark of true faith. In emulation of the great Imam al-Bukhari, who detailed the love of the Messenger of Allah SAW in the Book of Faith in his Ṣaḥih, the author and leading hadith authority of the Levant, Shaykh Nur al-Din ʿItr, acquaints the reader with the true meaning of sincere and earnest love for the Prophet SAW in light of the Qur'an and prophetic speech on this most pertinent of topics. Moreover, Shaykh Nur al-Din goes on to enumerate anecdotal evidence of the tremendous heights reached in loving him SAW, exhibited and expressed by his family and Companions, and thus provides the reader with a distinct formula to gain, increase and perfect one's love for the Mercy to the Worlds.