Please clarify you are looking for so I can provide the exact lyrics or background!
It could refer to a related lamentation sung by the prominent Azerbaijani/Iranian مداح (Maddah) (Şəhruz Həbibi). Ay Kerbela Ay Kerbela Mohubet Hebibi
The query could mean a few different things regarding the religious lamentation (Nauha/Latmiya/Mersiye) often titled or associated with the phrase "Ay Kerbela Ay Kerbela" : Please clarify you are looking for so I