अन्वयः

राघवबाहुचोदितः discharged from Rama's arm, विधूमवैश्वानरभीमदर्शनः terrific just as Vritasura's head was cut off by Indra, the Lord of gods, शक्राशनिवीर्यविक्रमः which was like Indra's thunderbolt, सःसायकः like burning fire, स्वभासा by its brilliance, दश ten, दिशः directions, प्रकाशयन् shining, जगाम went.

M N Dutt

Thereat that weapon hurled by Rāma's arm, resembling a smokeless flame, lighting up the ten cardinal points with its own glory, saught him that was possessed of the dreadful energy of Sakra's thunder-bolt.

Summary

Discharged from Rama's arm, the terrific weapon went just as the Lord of god's weapon, which was like Indra's thunderbolt burning like fire, shining by its brilliance and went in all directions and cut the head of Vritasura.

पदच्छेदः

स	तद् (१.१)
सायको	सायक (१.१)
राघवबाहुचोदितो	राघव–बाहु–चोदित (√चोदय् + क्त, १.१)
दिशः	दिश् (२.३)
स्वभासा	स्व–भास् (३.१)
दश	दशन् (२.३)
संप्रकाशयन्	संप्रकाशयत् (√संप्र-काशय् + शतृ, १.१)
विधूमवैश्वानरदीप्तदर्शनो	विधूम–वैश्वानर–दीप्त (√दीप् + क्त)–दर्शन (१.१)
जगाम	जगाम (√गम् लिट् प्र.पु. एक.)
शक्राशनितुल्यविक्रमः	शक्र–अशनि–तुल्य–विक्रम (१.१)

छन्दः

वंशस्थम् [१२: जतजर]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८	९	१०	११	१२
स	सा	य	को	रा	घ	व	बा	हु	चो	दि	तो
दि	शः	स्व	भा	सा	द	श	सं	प्र	का	श	यन्
वि	धू	म	वै	श्वा	न	र	दी	प्त	द	र्श	नो
ज	गा	म	श	क्रा	श	नि	तु	ल्य	वि	क्र	मः
ज			त			ज			र