Where is impeachment in the United States Constitution?

I know it is mentioned in several different places in the Constitution but I don't know exactly where.


What Article states the procedures for impeachment of a president, the grounds for impeachment, and the overall fact that a president may be impeached?|||Impeachment is mentioned in Article I, Section 3 and Article II, Section 4.


If you googled "Constitution Impeachment" as I did, you would have found it easily.