Valmiki Ramayana Yuddha Kanda Sarga 131 Shloka 119
Original Shlokaप्रणम्यशिरसानित्यंश्रोतव्यंक्षत्रियैर्द्विजात् ।।6.131.118।। ऐश्वर्यंपुत्रलाभाश्चभविष्यति न संशयः । रामायणमिदंकृत्स्नंशृण्वतःपठतस्सदा ।।6.131.119।।
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क्षत्रियैः by kshatriya, शिरसा head bent down, प्रणम्य offer salutations, द्विजात् by brahmins, श्रोतव्यम्, listen कृत्स्नम् earth, इदम् this, रामायणम् Ramayana, सदा always, शृण्वतः keep listening, पठतः reading, ऐश्वर्यम् kingship, पुत्रलाभश्च beget sons, भविष्यति in future, संशयः न no doubt
A kshatriya should always offer salutations with his head bent down before listening to Ramayana from a brahmin. Such a kshatriya will obtain kingship and also beget sons in future. There is no doubt.