Sunan Ibn Majah 612
سنن ابن ماجه#612Da'ifIt was narrated from 'Aishah that:The Prophet said: "If anyone of wakes up and sees some wetness, but he does not think that he had an erotic dream, let him have a bath. But if he thinks that he had an erotic dream but he does not see any wetness, then he does not have to take a bath
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan
Muhammad Fouad Abd al-BaqiHasan
Shuaib Al ArnautHasan Lighairihi
Zubair Ali ZaiDaif
In-book reference: 1:346