Al-Kāfi

6. Abu Ali al-Ash‘ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan from abu Ayyub al-Khazzaz from Muhammad ibn Muslim from abu al-Sabbah al-Kinaniy who has said the following: “About the meaning of the words of Allah, most Majestic, most Glorious, ‘. . . those who do not attend al-Zur,’ (25:72) abu ‘Abd Allah (a.s.), has said, ‘It (al-Zur’ah) is music (and singing).”’