Bhagavad-gītā 2.69
BG 2.69
Open the full passageया निशा सर्वभूतानां तस्यां जागर्ति संयमी । यस्यां जाग्रति भूतानि सा निशा पश्यतो मुनेः ॥६९॥
Sanskrit
yā niśā sarva-bhūtānāṁ tasyāṁ jāgarti saṁyamī yasyāṁ jāgrati bhūtāni sā niśā paśyato muneḥ
Translation
What is night for all beings is the time of awakening for the self-controlled; and the time of awakening for all beings is night for the introspective sage.