[Machine] I heard the Prophet’s muadhin (caller to prayer) on a cold night while I was under my blanket, and I wished for him to say "Pray in your homes". When he reached the part of the adhan that says "Hayya ‘ala al-falah" (come to success), he instead said "Pray in your homes". Then I asked about it, and it turns out that the Prophet ﷺ had commanded him to say that.  

سَمِعْتُ مُؤَذِّنَ النَّبِيِّ ﷺ فِي لَيْلَةٍ بَارِدَةٍ وَأَنَا فِي لِحَافِي فَتَمَنَّيْتُ أَنْ يَقُولَ صَلُّوا فِي رِحَالِكُمْ فَلَمَّا بَلَغَ حَيَّ عَلَى الْفَلَاحِ قَالَ صَلُّوا فِي رِحَالِكُمْ ثُمَّ سَأَلْتُ عَنْهَا فَإِذَا النَّبِيُّ ﷺ قَدْ أَمَرَهُ بِذَلِكَ  

[Machine] "I was called in the morning on a cold day while I was being massaged by my wife. I said, 'I wish the caller would say: Whoever is resting, there is no harm upon him.' Then the caller called the Prophet's ﷺ call to prayer in its final call, and there was no objection for those who were sitting."  

نُودِيَ بِالصُّبْحِ فِي يَوْمٍ بَارِدٍ وَأَنَا فِي مِرْطِ امْرَأَتِي فَقُلْتُ لَيْتَ الْمُنَادِيَ قَالَ مَنْ قَعَدَ فَلَا حَرَجَ عَلَيْهِ فَنَادَى مُنَادِي النَّبِيِّ ﷺ فِي آخِرِ أَذَانِهِ وَمَنْ قَعَدَ فَلَا حَرَجَ عَلَيْهِ