Bhāgavata-Māhātmya and the Complete Summary of the Śrīmad-Bhāgavatam
रामस्य कोशलेन्द्रस्य चरितं किल्बिषापहम् । निमेरङ्गपरित्यागो जनकानां च सम्भव: ॥ २४ ॥
rāmasya kośalendrasya caritaṁ kilbiṣāpaham nimer aṅga-parityāgo janakānāṁ ca sambhavaḥ
The Bhāgavatam narrates the sanctifying pastimes of Lord Rāmacandra, the King of Kośala, and also explains how King Nimi abandoned his material body. The appearance of the descendants of King Janaka is also mentioned.
This verse states that the life and deeds of Rāma, the lord of Kośala, are kīlbiṣāpaha—capable of removing sinful reactions—indicating the purifying potency of hearing and remembering Rāma-kathā.
Śukadeva Gosvāmī is listing major Bhagavatam narratives; Nimi’s departure is included as a noteworthy dynastic and dharmic episode connected with royal lineages and spiritual themes.
Regularly hearing and reciting the Lord’s sacred histories (especially Rāma’s) is presented as a means of inner purification, while reflecting on the impermanence of the body (as with Nimi) supports detachment and steady dharma.