It is narrated from Hazrat Abu Musa (may Allah be pleased with him) that when the Holy Prophet (peace and blessings be upon him) felt fear from any person or nation, he would supplicate: O Allah! I place You before their chests and I seek refuge in You from their evil.
Hadith Referenceمسند احمد / تتمہ مُسْنَدِ الْكُوفِيِّينَ / 19719
Hadith Gradingحکم دارالسلام:حديث حسن، عمران بن داود ضعيف مضطرب فيه، لكنه توبع