Surah (Chapter)-9 , Ayat(verse)-117 of Qur’an-e-Kareem,
Indeed, Allah has turned HIS mercy unto the Prophet, as well as unto those who have forsaken the domain of evil and those who have sheltered and succoured the FAITH-those who FOLLOWED (ITTABA) HIM IN THE HOUR OF DISTRESS, when the hearts of the other believers had well-nigh swerved from Faith, …….”
Itteba i.e to follow that is to carry forward & support the mission of Rasool as stated in the Qur’an.
Qur’an Chapter 9 , verse-20,
” Those who believe, and who have forsaken the domain of evil and have striven hard in God’s cause with their possessions and their lives have the highest rank in the sight of Allah; and it is they , they who shall triumph”
The details of’ Saum’ , ‘Hajj’ are there but the details of ‘the present day form of 5 times daily Prayer’ is not there in the Qur’an.