Its actually called Qasida Burdah, or The Burdah, The cloak, The Poem of the Cloak.
It's an ode of praise to the Prophet SAW, written by Imam Al Basari, many many years ago.
Its been sung by many different people over the years and it depends which version you want.
Asalaamualaikum warahmatulahi wabarakatuh,
I dont listen to these nasheeds but acccording to authentic sources this particular one contains shirky elements. May be you should try different recitations of the qur'an untill you find the one that calms you?