A Biographical Study of the Greatest Military General in History. Khalid Bin Al-Waleed was one of the greatest generals in history. Abu Bakr (ra) said 'Women will never give birth to the likes of Khalid Bin Al-Waleed.' Truly one of the most brilliant biographies written on the Companion of the Prophet (SAWS), Khalid bin Al-Waleed, is the Sword of Allah by Ibn Kathir. Ibn Kathir wrote the original story in his book Al-Bidayah wan-Nihayah. Khalid bin al Waleed (ra) said: "If I were to marry a beautiful woman whom I love, or if I were given the good news of having a newborn son, it is less beloved and dear to my heart then to be, in a cold icy night, in an army waiting to meet the enemy the next morning. These were the words of Khalid before his death.