  We propose a complete proof of the Born rule using an additional postulate
stating that for a short enough time {\Delta}t between two measurements, a
property of a particle will keep its values fixed. This dynamical postulate
allows us to produce the Born rule in its explicit form by improving the result
given in [1]. While the proposed postulate is still not part of the quantum
mechanics postulates, every experiment obeys it, and it can not be deduced
using the standard postulates of quantum mechanics.
