Narrated `Aisha
(At times) in Ramadan the Prophet (ﷺ) used to take a bath in the morning not because of a wet dream and would continue his fast.
Narrated Abu Bakr bin `Abdur-Rahman
My father and I went to `Aisha and she said, "I testify that Allah's Messenger (ﷺ) at times used to get up in the morning in a state of Janaba from sexual intercourse, not from a wet dream and then he would fast that day." Then he went to Um Salama and she also narrated a similar thing.