Anguttara Nikāya - The Numerical Discourses
1: The Book of the Ones
1. Obsession of the Mind - 18
1 "Nāhaṃ, bhikkhave, aññaṃ ekadhammampi samanupassāmi yena anuppannaṃ vā thinamiddhaṃ nuppajjati uppannaṃ vā thinamiddhaṃ pahīyati yathayidaṃ, bhikkhave, ārambhadhātu nikkamadhātu parakkamadhātu. Āraddhavīriyassa, bhikkhave, anuppannañceva thinamiddhaṃ nuppajjati uppannañca thinamiddhaṃ pahīyatī"ti.
Aṭṭhamaṃ.