We were doing the Rashi on Bamidbar 14:17 "Hashem erech apayim."
This refers to for tzadikim and for reshaim. When Moshe went up to heaven, he found HKBH sitting and writing "Hashem is slow to anger." Moshe said: for tzaddikim. Hashem said: even for reshaim. Moshe said: Reshaim should be destroyed! HKBH said: by your life, you will need this thing.
When Israel sinned with the eigel and the meraglim, Moshe davened before Him with Erech Apayim. HKBH said to him: did you say to me this is just for tzadikim? Moshe said to Him: and didn't You say to me even for reshaim?
When Chana was reviewing this, when she read that Moshe said: "Reshaim should be destroyed!" she remarked that this seems out of character for Moshe. He seems more the type to be praying on behalf of wicked people.