"I used to come to the Prophet ﷺ when he was praying, and I would greet him with Salam, he would return my greeting. Then I came to him when he was praying, and he did not return my greeting. When he said the Taslim, he pointed to the people and said: "Allah (SWT) has decreed that in the prayer you should not speak except to remember Allah (SWT), and it is not appropriate for you, and that you should stand before Allah (SWT) with obedience.'"  

كُنْتُ آتِي النَّبِيَّ ﷺ وَهُوَ يُصَلِّي فَأُسَلِّمُ عَلَيْهِ فَيَرُدُّ عَلَىَّ فَأَتَيْتُهُ فَسَلَّمْتُ عَلَيْهِ وَهُوَ يُصَلِّي فَلَمْ يَرُدَّ عَلَىَّ فَلَمَّا سَلَّمَ أَشَارَ إِلَى الْقَوْمِ فَقَالَ إِنَّ اللَّهَ ﷻ يَعْنِي أَحْدَثَ فِي الصَّلاَةِ أَنْ لاَ تَكَلَّمُوا إِلاَّ بِذِكْرِ اللَّهِ وَمَا يَنْبَغِي لَكُمْ وَأَنْ تَقُومُوا لِلَّهِ قَانِتِينَ  

[Machine] "I used to say goodbye to the Prophet ﷺ while he was in prayer, and he would respond to me. One day, I greeted him and he did not respond to me at all. I found this strange within myself, so I said, 'O Messenger of Allah, I used to greet you while you were in prayer and you would respond to me. But today, when I greeted you, you did not respond.' The Messenger of Allah ﷺ said, 'Indeed, Allah speaks about His affairs as He wills.'"  

كُنْتُ أُسَلِّمُ عَلَى النَّبِيِّ ﷺ وَهُوَ فِي الصَّلَاةِ فَيَرُدُّ عَلَيَّ فَسَلَّمْتُ عَلَيْهِ ذَاتَ يَوْمٍ فَلَمْ يَرُدَّ عَلَيَّ شَيْئًا فَوَجَدْتُ فِي نَفْسِي فَقُلْتُ يَا رَسُولَ اللهِ كُنْتُ أُسَلِّمُ عَلَيْكَوَأَنْتَ فِي الصَّلَاةِ فَتَرُدُّ عَلَيَّ وَإِنِّي سَلَّمْتُ عَلَيْكَ فَلَمْ تَرُدَّ عَلَيَّ شَيْئًا؟ فَقَالَ رَسُولُ اللهِ ﷺ إِنَّ اللهَ يُحْدِثُ فِي أَمْرِهِ مَا يَشَاءُ  

[Machine] I greeted the Prophet (PBUH) and he responded with a greeting. I greeted him again, but he did not respond. So, I said, "I greeted you, and you did not respond." He replied, "Indeed, Allah does as He wills in His affairs."  

كُنْتُ أُسَلِّمُ عَلَى النَّبِيِّ ﷺ فَيَرُدُّ عَلَيَّ فَسَلَّمْتُ عَلَيْهِ فَلَمْ يَرُدَّ عَلَيَّ فَقُلْتُ كُنْتُ مِمَّا أُسَلِّمُ عَلَيْكَ فَتُرَدَّ عَلَيَّ فَسَلَّمْتُ فَلَمْ تُرَدَّ عَلَيَّ فَقَالَ «إِنَّ اللهَ ﷻ يُحْدِثُ مِنْ أَمْرِهِ مَا شَاءَ»  

[Machine] We used to greet the Prophet ﷺ during prayer, and he would reply to us. But one day, I greeted him and he didn't reply to me. So, I asked him about it, and he said, "Allah ﷻ does as He wishes in His affairs."  

كُنَّا نُسَلِّمُ عَلَى النَّبِيِّ ﷺ فِي الصَّلَاةِ فَيَرُدُّ عَلَيْنَا فَلَمَّا كَانَ ذَاتَ يَوْمٍ سَلَّمْتُ عَلَيْهِ فَلَمْ يَرُدَّ عَلَيَّ فَسَأَلْتُهُ عَنْ ذَلِكَ فَقَالَ «إِنَّ اللهَ ﷻ يُحْدِثُ مِنْ أَمْرِهِ مَا شَاءَ»