Precious Fruits
So do not claim yourselves to be pure
Al-Qurtubi, may God have mercy on him, said: And His saying, "So do not claim yourselves to be pure" implies reducing the value of one who praises himself with his tongue, and declaring that the pure and purified one is the one whose deeds are good, and whom God Almighty has purified. So there is no regard for a person's self-purification, but rather the regard is for God's purification of him.
May God bless our Prophet Muhammad and all his family and companions.
Peace, mercy, and blessings of God be upon you.