Ramayana
देव जानाति न ह्येष बलमात्मनि मारुतिः । ऋषिशापाहृतबलस्तदैष कपिसत्तमः ॥ 7-36-43 ॥
O lord, this Maruti does not know the strength that is within himself; for this most excellent of monkeys had his power carried off by the curse of the sages.
english translation