Allopanishad
Allah Upanishad, or Allopanishad, is a book of uncertain origin written during Muslim rule in India during 15th to 16th century in the time of Mughal Emperor Akbar's reign.
Swami Dayananda Saraswati's book Satyarth Prakash argues that the Allopanishad is not part of the Upanishad canon and it does not even appear in the Atharvaveda. The famous Muktikā canon, which was given by Rama to Hanuman as the list of authentic 108 Upanishads does not contain Allopanishad. Most scholars view that the book has been written during the Mughal era. Allopanishad describes Akbar as a messenger or prophet of God.