Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 24
Sanskrit:
सत्यं सारं धृतिं दृष्ट्वा सभार्यस्य च भूपते: ।विश्वामित्रो भृशं प्रीतो ददावविहतां गतिम् ॥ २४ ॥
ITRANS:
satyaṁ sāraṁ dhṛtiṁ dṛṣṭvāsabhāryasya ca bhūpateḥviśvāmitro bhṛśaṁ prītodadāv avihatāṁ gatim
Translation:
The great sage Viśvāmitra saw that Mahārāja Hariścandra, along with his wife, was truthful, forbearing and concerned with the essence. Thus he gave them imperishable knowledge for fulfillment of the human mission.