Yes, he clearly said that he will never forgive anyone who trying to hard the village, even if that is his own brother, son, or family. Even in the manga kishi portray him in dark way, what hashirama did was actually the right thing. While most people will beg and cover the people who are precious to them even though that person commit a lot of crime, Hashirama clearly state if they are guilty then they must be punished no matter who they are even if they are his own family.
AND VIOLA ...... Sasuke SAMA goes free without any punishment!!
And another thing that I actually liked about Hashirama. The fact that we saw the friendship, the bond between Hashirama and Madara. We saw how it started, we saw how it developed, we saw friendship, we saw conflict, and we saw how it ended.
All within a span of what was it? About 15 chapter if I remember correctly. Maybe even shorter than that.
But we never saw any of that in the bond that was shoved down our throats for 698 chapters. The famous bond between Naruto and Sasuke.
We saw about 3 times that scene when little Sasuke was standing on the edge of the lake and Naruto walking past him while the two of them looked angry at each other, then as the two lovers parted ways, we see both of them smiling for no reason.
And we're supposed to believe that this is the strongest and most developed bond and friendship in the entire world. Such development. Give me a break.

Which I've told you - time and time again - is dangerous! There will never be consensus, son, among those you have helped to ascend. They will all differ in their views of what it means to be free. The peace you so desperately seek does not exist.
These men are united now by a common cause. But when this battle is finished they will fall to fighting amongst themselves about how best to ensure control. In time it will lead to war. You will see.