When Yusuf Islam – the artist formerly known as Cat Stevens – had his first child, he wrote her a song. Her name was Hasanah and the song was a kind of ABC of the Muslim faith:
A is for Allah, nothing but Allah … Ka is for kalima, a word we’re taught to teach us what is good and what is not.
It became a hit across the Muslim world. But, as the artist explained in a 2015 interview, he needed to go further than that.
