Translation of the verse 15 from Surah Al-hujurat : Number of verses 18 - - page 517 - Part 26.
Only those are the believers who have believed in Allah and His Messenger, and afterward doubt not but strive with their wealth and their lives for the Cause of Allah. Those! They are the truthful.
The believers are only the ones who have believed in Allah and His Messenger and then doubt not but strive with their properties and their lives in the cause of Allah. It is those who are the truthful.
(49:15) Indeed the ones possessed of true faith are those who believed in Allah and His Messenger and then they did not entertain any doubt and strove hard in the Way of Allah with their lives and their possessions. These are the truthful ones.