Obligation of Salah and reward of the five obligatory prayers

Q 2: Some people say that the Five Obligatory Daily Prayers were originally fifty in number but the Prophet (peace be upon him) asked Allah (Exalted be He) to decrease them as this was the advice of Prophet Musa (Moses, peace be upon him). As the number was thus decreased to five; was the reward for the remaining forty five Salah omitted? On the other hand, some other people are of the opinion that the number of Salah was initially five but the reward of each one is multiplied by ten and thus a person receives the reward of fifty Salahs on a daily basis. They support their view by Allah's saying: No change can there be in the Words of Allâh. .

A: A person receives the reward of fifty Salah for the Five Obligatory Daily Prayers they perform because every good deed is multiplied by ten. All praise be to Allah Alone.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.