Manusmriti
तस्माद् यम इव स्वामी स्वयं हित्वा प्रियाप्रिये । वर्तेत याम्यया वृत्त्या जितक्रोधो जितेन्द्रियः ॥ १७३ ॥
Let the prince, therefore, like Yama, not heeding his own likings and dislikings, behave exactly like Yama, suppressing his anger and controlling himself.
english translation
tasmAd yama iva svAmI svayaM hitvA priyApriye । varteta yAmyayA vRttyA jitakrodho jitendriyaH ॥ 173 ॥
hk transliteration by Sanscript