 believers are only those who have attained to faith in god and his apostle and have left all doubt behind and who strive hard in gods cause with their possessions and their lives it is they they who are true to their word!
إنما المؤمنون الذين آمنوا بالله ورسوله ثم لم يرتابوا وجاهدوا بأموالهم وأنفسهم في سبيل الله أولئك هم الصادقون