Valmiki Ramayana Aranya Kanda Sarga 33 Shloka 4
Original Shlokaस्वयं कार्याणि यः काले नानुतिष्ठति पार्थिवः। स तु वै सह राज्येन तैश्च कार्यैर्विनश्यति।।3.33.4।।
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पार्थिवः king, काले at the right time, कार्याणि actions, नानुतिष्ठति does not execute, राज्येन सह along with kingdom, तैः with them, कार्यैश्च सह along with works, विनश्यति is destroyed.
A king who does not act at the right time will be ruined along with the kingdom and its works.