What is meant by the continuity of the event in سلس الريح (sils al-rih - chronic flatulence), given that the flatulence sometimes ceases for hours and sometimes returns without sound or odor at unspecified times, and is frequent at the beginning of wudu (ablution) and prayer?

The intended meaning of the event's continuity is its constant presence, such that the affected person finds no time for purification and prayer. However, if sufficient time is found for purification and prayer, then ablution becomes obligatory. If the event sometimes ceases and sometimes continues, then ablution and prayer must be performed during its cessation, unless there is a fear of the time expiring, in which case one performs ablution and prays even if the event continues.