Where is this quote from?

My best friends, her boyfriend, and I were discussing superheroes and he told us of this quote he liked from Green Arrow to Batman:

“You’re raising that boy in your home. He fights your fight. I don’t give a @#$% what you CALL him, you’re his FATHER”.

This is the image, for anyone interested
https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpa1/v/t35.0-12/10807282_10152652378983229_1014101274_o.jpg?oh=0e6a91bc0e5291bea61145d53ba4a941&oe=547076E7&__gda__=1416642314_a3e0658b6699f13d142442b6c2e4dfe4

However, even after intensive searching online, none of us three can find where the quote is from and/or the circumstances around it. We are thinking it’s probably Batman said something to him about one of his sidekicks that he took offense to, or it’s about Batman’s biological son Damian.

Can anyone help us figure out where the heck this is from?