Book Year 23, the present volume, covers events from Muharram 1-Dhu al-Hijja 29, 10 AH/ca. April 9, 631 CE-March 28, 632 CE. Each Lesson begins with a critical thinking (furqan) standard, strategy or Quranic moral trait. It is important to note that when learning HOW to think which the Quran teaches, there is no specifically correct answer. It is going through the process of Quranic understanding that we learn HOW to think. Book Year 23 presented here begins with Lesson 113 and Quranic Chapter 9, the 113th chapter revealed. The Timeline places the Messenger’s Campaigns, including his receiving of delegations from other areas and countries, his Farewell Pilgrimage, his marriages and Patrols that the Messenger commands a Companion to lead.