Rig Veda
यस्त॑ इ॒ध्मं ज॒भर॑त्सिष्विदा॒नो मू॒र्धानं॑ वा त॒तप॑ते त्वा॒या । भुव॒स्तस्य॒ स्वत॑वाँ: पा॒युर॑ग्ने॒ विश्व॑स्मात्सीमघाय॒त उ॑रुष्य ॥ यस्त इध्मं जभरत्सिष्विदानो मूर्धानं वा ततपते त्वाया । भुवस्तस्य स्वतवाँ: पायुरग्ने विश्वस्मात्सीमघायत उरुष्य ॥
You are the munificent recompenser of that man who, sweating (with toil), brings you fuel, and for your service causes his head to ache; protect him, Agni from every one that seeks to do him evil.
english translation