Resalah of Islamic Rules (For Adolescents) This book includes a set of practical laws in simple language for adults and teenagers. Some of the titles which are discussed in this book are as follows: Purity, purifying agents, wudhu, ghusl, tayammum, obligatory and desirable prayers, fast, khums, zakat, transactions, food and drink, marriage etc. The book consists of 216 pages and the fourth edition was printed in 1998.