Proverbs 20:9 Talmud References

מִֽי־יֹ֭אמַר זִכִּ֣יתִי לִבִּ֑י טָ֝הַ֗רְתִּי מֵחַטָּאתִֽי׃

Who can say: ‘I have made my heart clean, I am pure from my sin’?

Find Talmudic references to Proverbs 20:9: , passages from the Talmud Bavli and Yerushalmi.