Ангуттара Никая 1:26
SUJATOKiñca, bhikkhave, atthavasaṁ paṭicca ‘kammassakomhi, kammadāyādo kammayoni kammabandhu kammapaṭisaraṇo, yaṁ kammaṁ karissāmi—
What is the advantage of often reviewing like this: ‘I am the owner of my deeds and heir to my deeds. Deeds are my womb, my relative, and my refuge.