I'm assuming you're looking for a PDF of "Ya Syeda Shohadai", a popular Urdu/Urdu-Qawwali/Naat poem.
The poem highlights the sacrifices of Imam Hussain (R.A.) and his companions in the Battle of Karbala, which took place on 10th Muharram, 61 AH (680 CE). The poem expresses the deep sorrow and grief of the poet and the Shia community for the martyrdom of Imam Hussain (R.A.) and his family members. Ya Syeda Shohadai Pdf Download
Here's a brief overview and some information about the poem: I'm assuming you're looking for a PDF of