Ramayana
स तु राज्यं चिरं कृत्वा वानराणां हरीश्वरः । स च ऋक्षरजा नाम कालधर्मेण सङ्गतः ॥ 7-36-38 ॥
That lord of the monkeys, having ruled the kingdom of the vanaras for a long time, this one named Riksharajas at last met with the law of time (death).
english translation