Verse 33

इमां कथमहं हन्मीत्येषा तेऽस्तु विचारणा ।अस्तं गतायां क्षीणायामस्यां ज्ञास्यसि राघव

In plain words

Let this instead be your inquiry: 'how shall I slay it?' When it has set and wasted away, then, O Rāghava, you shall know