Manusmriti
सन्ध्यां चोपास्य शृणुयादन्तर्वेश्मनि शस्त्रभृत् । रहस्याख्यायिनां चैव प्रणिधीनां च चेष्टितम् ॥ २२३ ॥
Having performed his twilight-devotions, let him, well armed, hear in an inner apartment the doings of those who make secret reports and of his spies.
english translation
sandhyAM copAsya zRNuyAdantarvezmani zastrabhRt । rahasyAkhyAyinAM caiva praNidhInAM ca ceSTitam ॥ 223 ॥
hk transliteration by Sanscript