2:185 The month of Ramadhan has been chosen for this collective training since this is the month in which the Qur’an was revealed, a Guidance for mankind, clearly explaining the ‘why’ of every Rule. And it is the Criterion of right and wrong. Hence, whoever witnesses this month (while he is well and at home) should participate in the program of Abstinence. But if any of you is sick or on a journey, let him practice Abstinence for the same number of days later. God desires for you ease and He desires for you no hardship. The postponement is to enable you to complete the period. The objective of this training is to establish the supremacy of God (on earth) for, He has shown you a well-lighted road for you to show gratitude.
Where are the rules for the prayer ritual in the Quran? They are not there so there is no Quranic understanding for salat to be a namaz prayer.
Birds do salat, shadows sujood, so what do birds do in their salat? The answer to this will get you closer to the Quranic definition of salat.