— श्रीमद्वाल्मीकिरामायणे आदिकाव्ये अयोध्याकाण्डे षड्षष्टितमस्सर्गः (६) In the grief over the loss of her husband, Kausalya says “A miser, in greed for money, perhaps will not hesitate to harm somebody with poisonous food. He may not even have the slightest of feeling of guilt while doing so. Similarly, Kaikeyi, listening to the teachings of Kubja, now…
— श्रीमद्वाल्मीकिरामायणे अयोध्याकाण्डे चतुष्षष्टितमस्सर्गः (६०) “After eating food that is not supposed to be eaten, one has to suffer from diseases caused by it. Similarly, one who commits adharmic deeds will have to suffer from its sin” thinking thus and reminding himself about Shravana Kumaara, Dasharatha sank in the ocean of grief.
–श्रीमद्वाल्मीकिरामायणे अयोध्याकाण्डे त्रिषष्टितमस्सर्गः (९) Dasharatha says “Man foolishly, not realizing the fruits of his adharmic actions, keeps repeatedly doing them. When the time comes to experience the result of his adharmic deeds, he repents in vain”.
— श्रीमद्वाल्मीकिरामायणे अयोध्याखाण्डे द्विषष्टितमस्सर्गः (१५) In the extreme grief that ShriRaama had to leave for the forests, Kausalya speaks harshly to Dasharatha. However, she immediately realizes her mistake and requests Dasharatha to excuse her. She then speaks this wonderful verse that declares that grief is the biggest enemy of oneself.
— श्रीमद्वाल्मीकिरामायणे अयोध्याकाण्डे पञ्चविंसस्सर्गः (३) “O ShriRaama! The dharma that you follow with धृति (courage) and नियमः (self-control) will protect you”.