Ramayana
यावत्सुरैश्च विप्रैश्च न विरुध्येर्महासुर । तावच्छूलं तवेदं स्यादन्यथा नाशमेप्यति ॥ 7-61-9 ॥
"So long as you do not act in hostility against the gods and the brahmins, O great asura, this trident shall remain yours; otherwise it will go to destruction."
english translation