Clarifying that faith in Allah most high is the best of deeds Sahih Muslim 85 e
Arabic hadith text
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنِ الْحَسَنِ بْنِ عُبَيْدِ اللَّهِ، عَنْ أَبِي عَمْرٍو الشَّيْبَانِيِّ، عَنْ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ "أَفْضَلُ الأَعْمَالِ - أَوِ الْعَمَلِ - الصَّلاَةُ لِوَقْتِهَا وَبِرُّ الْوَالِدَيْنِ "
Translation
It is reported on the authority of 'Abdullah that the Messenger of Allah observed
The best of' the deeds or deed is the (observance of) prayer at its proper time and kindness to the parents.