| What was the term used to describe a hymn sung at the opening or closing of a qawwali, introduced by Amir Khusrau? |
Hazal Qaul Fard Hamd |
| Qaul |
| Amir Khusrau introduced 'qaul' a hymn sung at the opening or closing of a qawwali which gave a unique form to the Chishti sama'. |