Valmiki Ramayana Bala Kanda Sarga 67 Shloka 16

धर्मात्मा virtuous, स: that, रघुनन्दन: Rama, बहूनाम् of several, नृपसहस्राणाम् thousands of men, पश्यताम् while seeing, तत् धनु: that bow, सलीलमिव as though with ease, आरोपयत् fixed the string and drew it.

Virtuous Rama, the delight of the Raghus, in the presence of several thousands of men fixed the string to the bow and drew it as though with ease.