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  

The Prophet ﷺ was asked: which is the best action? He replied: To stand in prayer for a long time.  

أَنَّ رَسُولَ اللَّهِ ﷺ سُئِلَ أَىُّ الأَعْمَالِ أَفْضَلُ قَالَ طُولُ الْقِيَامِ  

“The Prophet ﷺ was asked: ‘Which prayer is best?’ He said: ‘That with the longer Qunut.’”  

سُئِلَ النَّبِيُّ ﷺ أَىُّ الصَّلاَةِ أَفْضَلُ قَالَ طُولُ الْقُنُوتِ  

The Messenger of Allah ﷺ was asked about the prayer which was most excellent. He said: That in which the standing is longer. (This hadith is narrated by another chain of transmitters too.) (Using translation from Muslim 756b)  

سُئِلَ رَسُولُ اللهِ ﷺ أَيُّ الصَّلَاةِ أَفْضَلُ؟ قَالَ طُولُ الْقُنُوتِ  

[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 said, "Pray the prayer at its prescribed time."  

قَالَ رَسُولُ اللهِ ﷺ صَلِّ الصَّلَاةَ لِوَقْتِهَا  

“Which actions are best?” He said: “Raising one’s voice and slaughtering the sacrificial animal.” (Using translation from Ibn Mājah 2924)  

أَنَّ رَسُولَ اللَّهِ ﷺ سُئِلَ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «الْعَجُّ وَالثَّجُّ»  

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 asked the Messenger of Allah ﷺ which action is best. He said, "Offering prayers in their earliest time, being dutiful to parents, and striving in the path of Allah."  

سَأَلْتُ رَسُولَ اللهِ ﷺ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ لِأَوَّلِ وَقْتِهَا وَبِرُّ الْوَالِدَيْنِ وَالْجِهَادُ فِي سَبِيلِ اللهِ»  

[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 was asked, "Which action is best?" He said, "Kindness towards parents and praying on time." This narration was reported by Zaidah and was narrated by Shu'bah and Hammad ibn Salamah.  

سُئِلَ رَسُولُ اللهِ ﷺ أَيُّ الْعَمَلِ أَفْضَلُ؟ قَالَ «بِرُّ الْوَالِدَيْنَ وَالصَّلَاةُ لِوَقْتِهَا» أَسْنَدَهُ زَائِدَةُ وَأَوْقَفَهُ شُعْبَةُ وَحَمَّادُ بْنُ سَلَمَةَ  

[Machine] About Umm Farwah, she had pledged allegiance to the Prophet ﷺ. She said, the Messenger of Allah ﷺ was asked, "Which deeds are the most virtuous?" He replied, "Praying in its earliest prescribed time."  

عَنْ أُمِّ فَرْوَةَ وَكَانَتْ قَدْ بَايَعَتِ النَّبِيَّ ﷺ قَالَتْ سُئِلَ رَسُولُ اللهِ ﷺ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ قَالَ «الصَّلَاةُ فِي أَوَّلِ وَقْتِهَا»  

[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»  

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

سُئِلَ رَسُولُ اللهِ ﷺ وَأَنَا أَسْمَعُ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ فَقَالَ «الصَّلَاةُ لَأَوَّلِ وَقْتِهَا»  

[Machine] The Messenger of Allah ﷺ said, "The best charity is to reconcile between people."  

قَالَ رَسُولُ اللهِ ﷺ «أَفْضَلُ الصَّدَقَةِ إِصْلَاحُ ذَاتِ الْبَيِّنِ»  

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 الصَّلاةُ في أوَّلِ وَقتِهَا" .  

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