sn.52.24 Saṁyutta Nikāya (Linked Discourses)
The Ending of Defilements
“… And it’s because of developing and cultivating these four kinds of mindfulness meditation that I realized the undefiled freedom of heart and freedom by wisdom in this very life. And I live having realized it with my own insight due to the ending of defilements.”
The Linked Discourses with Anuruddha are the eighth section.