Valmiki Ramayana Ayodhya Kanda Sarga 30 Shloka 4
Original Shlokaअनृतं बत लोकोऽयमज्ञानाद्यदि वक्ष्यति। तेजो नास्ति परं रामे तपतीव दिवाकरे।।2.30.4।।
1 source checked for this shloka
तपति in a blazing, दिवाकरे इव like in the Sun, रामे in Rama, परम् great, तेजः splendour, नास्ति is not to be found, अयं लोकः this world, अज्ञानात् out of ignorance, वक्ष्यति यदि if they say so, then that one, अनृतम् is a falsehood, बत alas
Alas that will be a falschood if people out of ignorance say that there is no supreme splendour in Rama like the shining Sun.