وَمَن يَأْتِهِۦ مُؤْمِنًا قَدْ عَمِلَ ٱلصَّـٰلِحَـٰتِ فَأُو۟لَـٰٓئِكَ لَهُمُ ٱلدَّرَجَـٰتُ ٱلْعُلَىٰ Qur’an Ta-Ha (20:75)Waman yatihi muminan qad AAamila a l ssa li ha ti faol a ika lahumu a l ddaraj a tu alAAul a
Thus the Qur'an implies - here as well as in many other places - that the spiritual value of a person's faith depends on his doing righteous deeds as well: cf. the statement in 6:158 that on Judgment Day "believing will be of no avail to any human being... who, while believing, did no good works".