Shiva Purana

siva.sh/siva-purana/saturda-samhita/19/55

नियमं सुदृढं दृष्ट्वा सुप्रसन्नोऽभवन्मुनिः ।। दुर्वासास्सुप्रसन्नात्मा वरन्तस्मै प्रदत्तवान् ।। ५५ ।।

sanskrit

Knowing his promise steady and resolute, the sage was highly delighted. The delighted sage Durvāsas granted him the desired boons.

english translation

niyamaM sudRDhaM dRSTvA suprasanno'bhavanmuniH || durvAsAssuprasannAtmA varantasmai pradattavAn || 55 ||

hk transliteration by Sanscript