Valmiki Ramayana 2.3.10
चतुरङ्गबलं चैव गजं च शुभलक्षणम् ।चामरव्यजने श्वेते ध्वजं छत्रं च पाण्डुरम्॥
caturaṅgabalaṃ caiva gajaṃ ca śubhalakṣaṇam |cāmaravyajane śvete dhvajaṃ chatraṃ ca pāṇḍuram ||
Our plain-language meaning of this verse is waiting for scholar review.