Valmiki Ramayana Sundara Kanda Sarga 9 Shloka 38

तासाम् of those women, क्षपाक्षये at the end of night, प्रबुद्धानि from early morning, पद्मानीव like lotuses, भूत्वा having been, पुनः again, रात्रौ at night, संवृतपत्राणिव closing up their petals, तदा then, बभुः looked.

The faces of the women looked like blooming lotuses at daybreak, their petals closed up again at night.