Devibhagavatapurana 12.14.18

12.14.18

pratisandhyaṃ paṭhedyastu sandhyāṃ kṛtvā samāhitaḥ |
ekaikamasya cādhyāyaṃ sa naro jñānavānbhavet ||

If after performing the Sandhyâ, one reads only one chapter of this Bhâgavatam with a collected mind, he soon acquires the Real Knowledge. O Muni S’aunaka! While going to read this Bhâgavatam, first examine omens and then read. I have spoken already on this subject. If during the S’âradîya Pûjâ (the autumnal Durgâ Pûjâ), at the Navarâtra period, one reads with devotion this Bhâgavatam, the Devî Bhagavatî becomes greatly pleased and awards him results more than his desires.