Valmiki Ramayana Ayodhya Kanda Sarga 13 Shloka 15

तथा in that way, आर्त्तस्य of the anguished, विलपमानस्य while he was lamenting, राज्ञः of the king, त्रियामा with three yamas, सा that, शर्वरी night, चन्द्रमण्डलमण्डिता adorned with the lunar orb, न व्यभासत did not shine.

For the king who was in deep anguish and in tears the night appeared dark even though it was adorned with the lunar orb.