Aditya Hrudayam
आदित्यं प्रेक्ष्य जप्त्वा तु परं हर्षमवाप्तवान्। त्रिराचम्य शुचिर्भूत्वा धनुरादाय वीर्यवान्॥
Himself being purified concentrated on Sun God; Rama recited the prayer thrice with achamana (sipping water) then thrilled and lifted his holy bow.
english translation
AdityaM prekSya japtvA tu paraM harSamavAptavAn। trirAcamya zucirbhUtvA dhanurAdAya vIryavAn॥
hk transliteration by Sanscript