Valmiki Ramayana Ayodhya Kanda Sarga 51 Shloka 10

यः who, युधि in war, सर्वैः by all, देवासुरैः gods and demons, प्रसहितुम् to face him, न शक्यः not possible, सीतया सह with sita, तृणेषु on the blades of grass, सुखसंविष्टम् sleeping comfortably, तम् that Rama, पश्य see.

Look at that Rama whom all the gods and demons cannot face in war sleeps so comfortably on the grass with Sita.