What is the ruling on the whitish-yellowish discharge that continuously exits the womb? Is it considered an impurity that nullifies ablution, necessitating its renewal before prayer? How are its rulings observed during circumambulation (Tawaf) and prayer, especially when intending to perform Hajj?

Merely feeling the discharge of liquid does not nullify ablution; rather, it is not nullified except by certainty of its discharge. This liquid is the vaginal moisture of a woman, and it is pure and does not necessitate washing, but it does nullify ablution. If you suffer from frequent discharge, then you take the ruling of one afflicted with incontinence ( سلس ), and your worship is valid. If the adhan is called while you are performing tawaf, then exit to perform ablution and return to tawaf from the round you stopped at, or from the first round if the interruption is prolonged.