What is the ruling regarding the white fluid that resembles semen and is found inside the penis in the morning and at other times, and a small amount of which is discharged after a long period of not urinating?

The aforementioned discharge might be wady, which is a thick, turbid white fluid resembling semen that is discharged after urination. It necessitates istinja (cleansing of private parts), purification of clothes and body, and ablution (wudu), but it does not necessitate a full ritual bath (ghusl). If you are unsure of its true nature, you may consider it semen and perform ghusl, or simply wash whatever it has touched. This applies if it exits the penis. However, if it remains inside, it does not necessitate ghusl or istinja.