Valmiki Ramayana Sundara Kanda Sarga 46 Shloka 28

विमले in a clear white, अम्बरे in the sky, विष्ठितः stood, महाबाहुः greatarmed one, सः कपिः that vanara, ताभ्याम् by both of them, सहसा all of a sudden, उत्पत्य having leapt, मुद्गराभ्याम् with two iron hammers, वक्षसि on the chest, अभिहतः hit.

As the strongarmed vanara stood stationed in the clear white sky both the generals leaped into the sky and hit him all of a sudden with two iron hammers.