Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 52

Sanskrit:

इति तस्मै वरं दत्त्वा श्रियं चान्वयवर्धिनीम् ।बलमायुर्यश: कान्तिं निर्जगाम सहाग्रज: ॥ ५२ ॥

ITRANS:

iti tasmai varaṁ dattvāśriyaṁ cānvaya-vardhinīmbalam āyur yaśaḥ kāntiṁnirjagāma sahāgrajaḥ

Translation:

Not only did Lord Kṛṣṇa grant Sudāmā these benedictions, but He also awarded him strength, long life, fame, beauty and ever-increasing prosperity for his family. Then Kṛṣṇa and His elder brother took Their leave.

Purport:

We can see a clear difference between Lord Kṛṣṇa’s dealings with the nasty washerman and His dealings with the devoted florist Sudāmā. The Lord is as hard as a thunderbolt for those who defy Him and as soft as a rose for those who surrender to Him. Therefore we should all sincerely surrender to Lord Kṛṣṇa, since that is clearly in our self-interest.