Thus, they fulfill their role as Muslims in the best manner. Islam is the way of Allah preached by all Messengers (peace be upon them). Allah (glory be to Him) said,
Truly, the religion with Allâh is Islâm.
And whoever seeks a religion other than Islâm, it will never be accepted of him
This day, I have perfected your religion for you, completed My Favour upon you, and have chosen for you Islâm as your religion.
Allah called His way Islam as it involves submission to Allah's commandments and prohibitions, adherence to worship of Allah, and observing His Restrictions. Islam is literally derived from the word 'aslam' i.e. to submit and yield. It is said, "aslam fulan li fulan i.e. soandso submitted to soandso." Likewise, it is said, "aslam al`abd lillah i.e. the servant submitted completely to Allah". Therefore, Islam means the complete submission and obedience to Allah's ordinances, avoiding His Prohibitions, and observing His Restrictions.