Hafiz Salah-ud-din Yusuf is an Islamic scholar and author known for his works on Islamic jurisprudence, particularly focusing on practical guidance for Muslims. His book "RAMADAN Rules and Related Issues" offers detailed insights into the rules and regulations of Ramadan, including fasting, prayers, and charity. It addresses both the spiritual and practical aspects of observing the holy month and provides solutions to contemporary challenges Muslims face during Ramadan. His work is aimed at helping Muslims better understand and fulfill their religious duties during this important period.