Arthashastra
सर्वज्ञ ख्यापनं तु गृह गुह्य प्रवृत्ति ज्ञानेन प्रत्यादेशो मुख्यानाम्, कण्टक शोधन अपसर्प अवगमेन प्रकाशनं राज द्विष्ट कारिणाम्, विज्ञाप्य उपायन ख्यापनम् अदृष्ट संसर्ग विद्या संज्ञा आदिभिः, विदेश प्रवृत्ति ज्ञानं तद् अहर् एव गृह कपोतेन मुद्रा सम्युक्तेन ॥
Proclamation of his omniscience is as follows:--rejection of his chief officers when their secret, domestic and other private affairs are known; revealing the names of traitors after receiving information from spies specially employed to find out such men; pointing out the impolitic aspect of any course of action suggested to him; and pretensions to the knowledge of foreign affairs by means of his power to read omens and signs invisible to others when information about foreign affairs is just received through a domestic pigeon which has brought a sealed letter.
english translation
sarvajJa khyApanaM tu gRha guhya pravRtti jJAnena pratyAdezo mukhyAnAm, kaNTaka zodhana apasarpa avagamena prakAzanaM rAja dviSTa kAriNAm, vijJApya upAyana khyApanam adRSTa saMsarga vidyA saMjJA AdibhiH, videza pravRtti jJAnaM tad ahar eva gRha kapotena mudrA samyuktena ॥
hk transliteration by Sanscript