He (Sukadeva Gosvami) therefore (after becoming attracted to Krsna's pastimes) mercifully spoke the supreme Purana, known as Srimad-Bhagavatam, which is the bright light of the Absolute Truth and which describes the activities of Lord Krsna

Expressions researched:
"He therefore mercifully spoke the supreme Purāṇa, known as Śrīmad-Bhāgavatam, which is the bright light of the Absolute Truth and which describes the activities of Lord Kṛṣṇa"

Sri Caitanya-caritamrta

CC Madhya-lila

Although in the beginning he was absorbed in the happiness of Brahman realization and was living in a secluded place, giving up all other types of consciousness, he became attracted by the most melodious pastimes of Lord Śrī Kṛṣṇa. He therefore mercifully spoke the supreme Purāṇa, known as Śrīmad-Bhāgavatam, which is the bright light of the Absolute Truth and which describes the activities of Lord Kṛṣṇa.

CC Madhya 17.138, Translation and Purport

“‘Let me offer my respectful obeisances unto my spiritual master, the son of Vyāsadeva, Śukadeva Gosvāmī. It is he who defeats all inauspicious things within this universe. Although in the beginning he was absorbed in the happiness of Brahman realization and was living in a secluded place, giving up all other types of consciousness, he became attracted by the most melodious pastimes of Lord Śrī Kṛṣṇa. He therefore mercifully spoke the supreme Purāṇa, known as Śrīmad-Bhāgavatam, which is the bright light of the Absolute Truth and which describes the activities of Lord Kṛṣṇa.’

This verse was spoken by Sūta Gosvāmī in Śrīmad-Bhāgavatam (SB 12.12.69).