The Book of Faith
1/36. Chapter:
Clarifying that faith in Allah most high is the best of deeds
Sahih Muslim
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 " .
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.
Reference : Sahih Muslim 85eIn-book reference : Book 1, Hadith 162USC-MSA web (English) reference : Book 1, Hadith 155