Valmiki Ramayana Kishkindha Kanda Sarga 11 Shloka 67

शाखावलम्बिनः branches overlapping one another, इमे these, सप्त seven, विपुलाः sturdy, सालाः Sala trees, यत्र there, एकम् one, वाली Vali, ओजसा his own, निष्पत्रयितुम् to remove its leaves, घटते he is competent.

'Look at these seven sturdy Sala trees with branches of one overlapping the other. Vali was able to remove all the leaves of one Sala tree with just one arrow.