This is a book in Russian entitled Just One Message. From time immemorial, Allah has been sending His Message to humankind, reminding them of the purpose for which they were created, namely, to worship Him alone. This message of tawheed (the Islamic concept of monotheism), accompanied by laws which regulate human life on the individual and social level, is the Message brought by all the prophets and Messengers, down throughout the ages, to all nations. The Messages of the earlier prophets and Messengers were entrusted to their priests and rabbis, to be preserved and conveyed to subsequent generations by them, but they failed to fulfil that trust, concealing, distorting or omitting parts of the Message until the word of truth was lost. Finally, Allah sent His last Messenger with the ultimate Message addressed to all of humanity, the Message of Islam, and Allah Himself guaranteed to preserve it until the Day of Resurrection.