Analysis of information sources in references of the Wikipedia article "Daf" in English language version.
Some Muslims hold all forms of music to be forbidden, others permit certain forms of unaccompanied singing, while others will permit the use of daff or drum like a tambourine (without the cymbals). In some Sufi circles the flute or lute are permitted.
The daff, a simple drum or tambourine, is specifically mentioned. The Prophet did not impose any restriction on using the daff, a common musical instrument used at that time.
Daff ... It has been important to Sufi music.
