Ramayana
यदृच्छया तदा दृष्टो वालिनापि स रावणः । पापाभिप्रायवान् दृष्ट्वा चकार न तु सम्भ्रमम् ॥ 7-34-14 ॥
By chance Ravana was then seen by Vali as well; but although Vali saw him there with his evil intent, he felt no agitation whatsoever.
english translation