What is the meaning of a prayer being judged as disliked (makruh) and needing to be repeated within its time?

The meaning of a disliked (makruh (definition)) prayer is that it is disliked due to a reason present during its performance, such as one who performs ablution with the leftover water of an animal that eats impurities, or performs tayammum (definition) with impure dust, or prays in a garment that reveals the skin. The prayer is to be repeated within its prescribed time as long as the time remains. If the time expires, it is not repeated. This is what the jurists of the Maliki and Hanbali schools mention.