CC Madhya 24.100
vedyaṁ vāstavam atra vastu śiva-daṁ tāpa-trayonmūlanam
śrīmad-bhāgavate mahā-muni-kṛte kiṁ vā parair īśvaraḥ
sadyo hṛdy avarudhyate ’tra kṛtibhiḥ śuśrūṣubhis tat-kṣaṇāt
dharmaḥ — religiosity; projjhita — completely rejected; kaitavaḥ — in which fruitive intention; atra — herein; paramaḥ — the highest; nirmatsarāṇām — of the fully pure in heart; satām — devotees; vedyam — to be understood; vāstavam — factual; atra — herein; vastu — substance; śiva-dam — giving well-being; tāpa-traya — of the threefold miseries; unmūlanam — causing uprooting; śrīmat — beautiful; bhāgavate — in the Bhāgavata Purāṇa; mahā-muni — by the great sage (Vyāsadeva); kṛte — compiled; kim — what; vā — indeed; paraiḥ — with others; īśvaraḥ — the Supreme Lord; sadyaḥ — at once; hṛdi — within the heart; avarudhyate — becomes confined; atra — herein; kṛtibhiḥ — by pious men; śuśrūṣubhiḥ — desiring to hear; tat-kṣaṇāt — without delay.
“ ‘The great scripture Śrīmad-Bhāgavatam, compiled by Mahāmuni Vyāsadeva from four original verses, describes the most elevated and kindhearted devotees and completely rejects the cheating ways of materially motivated religiosity. It propounds the highest principle of eternal religion, which can factually mitigate the threefold miseries of a living being and award the highest benediction of full prosperity and knowledge. Those willing to hear the message of this scripture in a submissive attitude of service can at once capture the Supreme Lord in their hearts. Therefore there is no need for any scripture other than Śrīmad-Bhāgavatam.’
This is a quotation from Śrīmad-Bhāgavatam (1.1.2). For an explanation see Ādi-līlā 1.91.