Publication of “Khoms” in Prophet’s era and answering vacuities, published by Ayatollah Sheikh Yadu’llah dozdozany Tabrizi. Hamzraz Ghalam publication. page 172. Presenting the book: “Khoms” is one of the Furoo of the Islam. Is Khoms only belongs to booties gained in war or does it applies in business too? Did prophets and Imams charge Muslims Khoms? Answering these kinds of questions is the main subject of this book. This book, comparing with other similar books has a better attention to details and is of great value, and since it is in form of question and answer, it is understandable and likable by specialists. Therefore, not only students of religious sciences but also scholars can benefit from it. The issues addressed by the book result in reknowing the most delicate religious processing. His holiness have done some great research. In the book, we face some important titles from; “history of Khoms”, Similarities in Khoms among Sunni, Economic prayers of Quran, difference between Zakat and Khoms, Resignation and Imam Ali (AS). Some important and fundamental points will be discussed in the book, which, have direct effect on knowing religious manners, and therefore, they are counted as some of the most valuable sources of discussion in Furoo of Islam which, every Muslim must go after if they have vacuities.