Canto 2 -
Ayodhyā-kāṇḍa
Chapter 42: Daśaratha Goes to Kausalyā’s Residence in Distress
Text 2.42.4

तस्य दक्षिणमन्वागात्कौसल्या बाहुमङ्गना।
वामं चास्यान्वगात्पार्श्वं कैकेयी भरतप्रिया॥

tasya dakṣiṇam anvāgāt kausalyā bāhum aṅganā
vāmaṁ cāsyānvagāt pārśvaṁ kaikeyī bharata-priyā

tasya = his; dakṣiṇam = his right; anvāgāt = came to lift; kausalyā = Kausalyā; bāhum = arm; aṅganā = wife; vāmam = left arm; ca = and; asya = his; anvagāt = went; pārśvam = near; kaikeyī = Kaikeyī; bharata-priyā = who loved her son Bharata.

His wife Kausalyā came to lift his right arm and Kaikeyī who loved her son Bharata went near his left arm.

Pārśvam (“near”) indicates that Kaikeyī did not [yet] hold his [left] arm like Kausalyā.1 

1 Kausalyā held Daśaratha’s right arm to lift him up while Kaikeyī wanted to hold his left arm for the same purpose.