I was listening to a nasheed composed by Sami Yusuf, it's called, "Al-Mu'allim" which goes something like this.....

We once had a Teacher
The Teacher of teachers,
He changed the world for the better
And made us better creatures,
O Allah we’ve shamed ourselves
We’ve strayed from Al-Mu'allim,
Surely we’ve wronged ourselves
What will we say in front him?
O Mu'allim...

He prayed while others slept
While others ate he’d fast,
While they would laugh he wept
Until he breathed his last,
His only wish was for us to be
Among the ones who prosper,
Ya Mu'allim peace be upon you,
Truly you are our Teacher,
O Mu'allim..


It's pretty long but anyways it's beautiful, BTW the "Teacher" is Prophet Muhammad that he is referring to.... i highly recommend that you listen to it...it!