Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 43
वयं धन्यतमा लोके गुरोऽपि क्षत्रबन्धव: ।वयं पिबामो मुहुस्त्वत्त: पुण्यं कृष्णकथामृतम् ॥ ४३ ॥
vayaṁ dhanyatamā lokeguro ’pi kṣatra-bandhavaḥvayaṁ pibāmo muhus tvattaḥpuṇyaṁ kṛṣṇa-kathāmṛtam
O my lord, my spiritual master, although we are the lowest of kṣatriyas, we are glorified and benefited because we have the opportunity of always hearing from you the nectar of the pious activities of the Supreme Personality of Godhead.
The pious activities of the Supreme Personality of Godhead are very confidential. It is not ordinarily possible to hear such activities unless one is very, very fortunate. Parīkṣit Mahārāja placed himself as kṣatra-bandhavaḥ, which means “the lowest of the kṣatriyas.” The qualities of the kṣatriya are described in Bhagavad-gītā, and although the general quality of the kṣatriya is īśvara-bhāva, the tendency to rule, a kṣatriya is not supposed to rule over a brāhmaṇa. Thus Mahārāja Parīkṣit regretted that he had wanted to rule over the brāhmaṇas and had therefore been cursed. He considered himself the lowest of the kṣatriyas. Dānam īśvara-bhāvaś ca kṣātraṁ karma svabhāvajam (Bg. 18.43). There was no doubt that Mahārāja Parīkṣit had the good qualities of a kṣatriya, but as a devotee he presented himself, with submissiveness and humility, as the lowest of the kṣatriyas, remembering his act of wrapping a dead serpent around the neck of a brāhmaṇa. A student and disciple has the right to ask the guru about any confidential service, and it is the duty of the guru to explain these confidential matters to his disciple.