Canto 1 - Boyhood
Bāla-kāṇḍa
Chapter 31: Viśvāmitra, Rāma and Lakṣmaṇa Depart for Mithilā
Text 1.31.7

त्वं चैव नरशार्दूल सहास्माभिर्गमिष्यसि।
अद्भुतं धनुरत्नं च तत्र तद्द्रष्टुमर्हसि॥

tvaṁ caiva nara-śārdūla sahāsmābhir gamiṣyasi
adbhutaṁ
dhanu-ratnaṁ ca tatra tad draṣṭum arhasi

tvam ca eva = You; nara-śārdūla = O tiger among men; saha-asmābhiḥ gamiṣyasi = should come with us; adbhutam = the wonderful; dhanu-ratnam = jewel among bows; ca = and; tatra = there; tat draṣṭum arhasi =see.

O tiger among men, You should come with us and see the wonderful jewel among bows there.

Ca here indicates that Lord Rāmacandra should also see the sacrifice conducted by Janaka.