Scholars say zenith shadow length of object should be added to 1 height of the object to get Asr time's, but in the texts of Hadiths' it is only 1 height of object, without addition of its zenith shadow length.
It seems to me that the rulings of the scholars contradicts narrations, can you clarify how the scholars came to this ruling?
example of what scholars say:
shadow of each thing is equal to twice its size excluding the fay' (shadow) of decline
by "shadow of decline" they mean shadow of of same object as it was at zenith time. this is Hanafi text, but same thing in all 4 sunni mazhabs.