Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) ordered us that when a ghoul (ghul) appears before us (the narrator is in doubt; perhaps the words are: when we see a ghoul), we should call out the adhan loudly.
Al-Bazzar recorded it, and its narrators are thiqat (trustworthy); however, by my reckoning, al-Hasan al-Basri did not hear from Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأذكار / 17113