The best of' the deeds or deed is the (observance of) prayer at its proper time and kindness to the parents.  

عَنِ النَّبِيِّ ﷺ قَالَ أَفْضَلُ الأَعْمَالِ أَوِ الْعَمَلِ الصَّلاَةُ لِوَقْتِهَا وَبِرُّ الْوَالِدَيْنِ  

[Machine] I said, "O Messenger of Allah, which actions are the best?" He replied, "Prayer at its prescribed time."  

قُلْتُ يَا رَسُولَ اللهِ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ قَالَ الصَّلَاةُ لِوَقْتِهَا  

[Machine] The Messenger of Allah ﷺ was asked, "Which deeds are the best?" He replied, "Praying on time."  

سُئِلَ رَسُولُ اللهِ ﷺ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ قَالَ الصَّلَاةُ لِوَقْتِهَا  

[Machine] The Messenger of Allah ﷺ was asked, "Which action is the best?" He replied, "Offering the prayer at its earliest time."  

سُئِلَ رَسُولُ اللَّهِ ﷺ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ فِي أَوَّلِ وَقْتِهَا»  

Prayer at its appointed hour. I (again) said: Then what? He (the Holy Prophet) replied: Kindness to the parents. I (again) said: Then what? He replied: Earnest endeavour (Jihad) in the cause of Allah. And I would have not ceased asking more questions but out of regard (for his feelings). (Using translation from Muslim 85a)  

سَأَلْتُ رَسُولَ اللَّهِ ﷺ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ لِمِيقَاتِهَا»  

[Machine] I asked the Messenger of Allahﷺ which actions are the best? He replied, "Prayer at its appointed time."  

سَأَلْتُ رَسُولَ اللَّهِ ﷺ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ فِي أَوَّلِ وَقْتِهَا»  

Prayer at its appointed hour. I (again) said: Then what? He (the Holy Prophet) replied: Kindness to the parents. I (again) said: Then what? He replied: Earnest endeavour (Jihad) in the cause of Allah. And I would have not ceased asking more questions but out of regard (for his feelings). (Using translation from Muslim 85a)  

سَأَلْتُ النَّبِيَّ ﷺ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ لِوَقْتِهَا»  

[Machine] I asked, "O Messenger of Allah, which deeds are the best?" He said, "Praying at the earliest time of its prescribed period."  

قُلْتُ يَا رَسُولَ اللَّهِ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ فِي أَوَّلِ وَقْتِهَا»  

[Machine] I said, "Oh Messenger of Allah, which action is the best?" He said, "Praying on time."  

قُلْتُ يَا رَسُولَ اللهِ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ لِوَقْتِهَا»  

[Machine] The Messenger of Allah, ﷺ , said, "The most beloved deeds to Allah are the prayers in their designated time."  

قَالَ رَسُولُ اللهِ ﷺ «أَحَبُّ الْأَعْمَالِ إِلَى اللهِ ﷻ الصَّلَاةُ فِي أَوَّلِ وَقْتِهَا»  

"خَيْرُ الأَعْمَالِ وَأَقْرَبُهَا إِلَى اللَّه: الصَّلَاةُ في أوَّلِ وَقْتِهَا".  

The best of' the deeds or deed is the (observance of) prayer at its proper time and kindness to the parents. (Using translation from Muslim 85e)   

"أفْضَلُ الأعَمالِ الصَّلاةُ لِوَقتِها، وبرُّ الوَالدين" .  

"أفضلُ الأعمالِ إيمانٌ بالله، ثمَّ الصلاةُ لأوَّلِ وَقِتها".  

" سُئِلَ رَسُولُ اللَّهِ ﷺ أَىُّ الأَعْمَالِ أَفْضَلُ؟ قَالَ: الصَّلَاةُ فِى أَوَّلِ وَقْتِهَا".