The author of this book is Abu Al-Faraj Abdul Rahman bin Abi Al-Hasan bin Jaafar. He was the imam of his time in hadith, preaching, and improvising sermons. He wrote in several arts, and most of his books are in the legal sciences and preaching, and he has books in medicine, geography, and more! It has been said: "If you collected the pamphlets that he wrote, calculated the length of his life, and divided the pamphlets among them, each day would be summed up by nine pamphlets." This is something that the mind magnifies. His books are distinguished by the strength and eloquence of the phrase, the correctness and elegance of the style, the accuracy of the meaning and the smoothness of the pronunciation. Those who are passionate about writing should read and meditate on it, as it is one of the best things that nurtures the faculty of eloquence in their souls. He often includes facts that occurred to him and incidents that were authentically transmitted to him. He cites them, and they make the topic clearer and give it beauty and elegance. Only a few of his books were published, and most of them are still scattered in the offices of Europe, Egypt, and Istanbul.