3.9.4
He asked: `Who are the Rudras?' Yagnavalkya replied: `These ten vital breaths (pranas, the senses, i.e. the five gnanendriyas, and the five karmendriyas), and Atman, as the eleventh. When they depart from this mortal body, they make us cry (rodayanti), and because they make us cry, they are called Rudras.'