"Soz-e-Karbala" is a famous Urdu poem written by Muhammad Iqbal, also known as Allama Iqbal, a renowned Pakistani poet, philosopher, and politician.
I'm assuming you're looking for a piece (or a portion) of the book "Soz-e-Karbala" (also known as "Soz-e-Karbala Jild 2") in PDF format.