Does the ablution of a person afflicted with urinary incontinence become void with the passing of one-third or one-half of the night?

The excused person performs ablution for prayer after its time has begun and prays with this ablution the obligatory prayer and whatever supererogatory prayers he wishes, until that time expires or he experiences another impurity. Based on this, your ablution for the 'Isha prayer does not become invalid except with the advent of true dawn, unless you experience another impurity besides your permanent one. It is permissible for someone in the ruling of the woman with chronic vaginal bleeding to combine two prayers, make up missed prayers, and perform supererogatory prayers until the time expires.