What is the difference in the timing of the Asr prayer between the Shafi'i and Hanafi schools of thought, and which of them is more correct?

The beginning of the 'Asr prayer time according to the Shafi'is is when the shadow of an object becomes equal to its length after the declining shadow of midday, and it continues until sunset. As for the Hanafis, it begins when the shadow of an object becomes twice its length, and continues until sunset. The correct view is that the beginning of the 'Asr prayer time is when the shadow of an object becomes equal to its length, excluding the shadow of midday, and it extends until the sun turns yellow, after which it is a time of necessity until its setting, based on prophetic hadiths that specify these times. The totality of the hadiths indicates that the 'Asr prayer has an optional time that extends until the shadow of an object becomes twice its length, a permissible time that extends until the sun turns yellow, and a time of necessity that extends until sunset.