Valmiki Ramayana 6.118.9
निर्गुणं भ्रातरं त्यक्त्वा यो मां स्वयमुपस्थितः ।विभीषणस्य भक्तस्य सफलो ऽद्य परिश्रमः॥
nirguṇaṃ bhrātaraṃ tyaktvā yo māṃ svayamupasthitaḥ |vibhīṣaṇasya bhaktasya saphalo 'dya pariśramaḥ ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book