Shiva Purana
दुर्दर्शनादौ सद्यो वै मासमात्रे समाचरेत् । महापापादिसंप्राप्तौ कुर्याद्भैरवपूजनम् 1-18-१३० ।
In regard to evil dreams and ill omens this shall be performed instantly or definitely within a month. When one is defiled by a great sin, the worship of Bhairava shall be performed.
english translation
durdarzanAdau sadyo vai mAsamAtre samAcaret । mahApApAdisaMprAptau kuryAdbhairavapUjanam 1-18-130 ।
hk transliteration by Sanscript