Therefore, after getting up from bed in the morning, those who desire their own welfare — especially the brāhmaṇas, kṣatriyas, vaiśyas and in particular the brāhmaṇa Vaiṣṇavas — should chant this narration as it is, without deviation, to counteract the troubles of bad dreams.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यथानुकीर्तयन्त्येतच्छ्रेयस्कामा द्विजातयः । शुचयः प्रातरुत्थाय दुःस्वप्नाद्युपशान्तये
yathānukīrtayantyetacchreyaskāmā dvijātayaḥ | śucayaḥ prātarutthāya duḥsvapnādyupaśāntaye
SB 8.4.15