This book highlights the impact of the two grand Companions, Abu Bakr as-Siddiq and Omar Ibn al-Khattab al-Faruq (may Allah be pleased with them), on heeding the Hadiths of the Messenger of Allah (ppbuh). It also analyzes their biographies and attributes, and mentions only the texts which clarify the rank of both. The author starts her book by talking about the importance of the research, talking about it and the reasons for its selection and methodology. Then she divides the book into five sections. In the first section, she mentions the biography of as-Siddiq, may Allah be pleased with him, his self-religious characteristics and then his rank and preference. She allocates the second section for his attributes before and after he became a caliph. In the third section, she deals in the biography of al-Faruq, may Allah be pleased with him, presenting his biography, attributes and rank. In the fourth section she discusses his attributes before and after he became a caliph, too. In the fifth, final, chapter, she concludes with the virtues of the two Sheikhs when they were together during the life of the Prophet (ppbuh), their virtues after his death, the glad tidings of their caliphate and the faith-based duties towards them. She completes the section with mention of the virtues of the Family of The Prophet and the highly deep link between Aal al-Bayt and the two Sheikhs. She refutes equivocations in the subject and discusses two issues: The first is Ali Ibn Abu Talib’s pledge of allegiance to as-Siddiq, may Allah be pleased with them. The second is the attitude of the two Sheikhs towards requesting the inheritance of the Prophet (ppbuh). The author appends her book by mentioning her references and sources.