My lord, all of you are expert in chanting the Vedic mantras. How then has the result been opposite to the one desired? This is a matter for lamentation. There should not have been such a reversal of the results of the Vedic mantras.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
भगवन् किमिदं जातं कर्म वो ब्रह्मवादिनाम् । विपर्ययमहो कष्टं मैवं स्याद्ब्रह्मविक्रिया
bhagavan kimidaṃ jātaṃ karma vo brahmavādinām | viparyayamaho kaṣṭaṃ maivaṃ syādbrahmavikriyā
SB 9.1.17