The kuffaar - The most ungrateful servants of Allah Ta'ala
Q: Allah Ta'ala says in the Holy Qur'an "And few of My servants are grateful." (Quran 34:13). In this Aayat when Allah Ta'ala speaks of "servants", which servants are Allah Ta'ala referring to; the believers (i.e. few amongst the believers are grateful) or the believers and non-believers (i.e. all among them are ungrateful except few)?