[Machine] That Umar ibn Al-Khattab used to teach people the Tashahhud (testimonial prayer) during the prayer while delivering a sermon on the pulpit of the Messenger of Allah ﷺ . He would say, "When one of you says the Tashahhud, let him say: 'In the name of Allah, the Most Gracious, the Most Merciful. Peace be upon you, O Prophet, and the mercy of Allah and His blessings. Peace be upon us and upon the righteous servants of Allah. I bear witness that there is no god but Allah, alone, without partner, and I bear witness that Muhammad is His servant and Messenger.' Umar said, 'Begin with yourselves after the Messenger of Allah ﷺ and send peace upon the righteous servants of Allah.'"
أَنَّ عُمَرَ بْنَ الْخَطَّابِ ؓ كَانَ يُعَلِّمُ النَّاسَ التَّشَهُّدَ فِي الصَّلَاةِ وَهُوَ يَخْطُبُ النَّاسَ عَلَى مِنْبَرِ رَسُولِ اللهِ ﷺ فَيَقُولُ إِذَا تَشَهَّدَ أَحَدُكُمْ فَلْيَقُلْ بِسْمِ اللهِ خَيْرِ الْأَسْمَاءِ التَّحِيَّاتُ الزَّاكِيَّاتُ الصَّلَوَاتُ الطَّيِّبَاتُ لِلَّهِ السَّلَامُ عَلَيْكَ أَيُّهَا النَّبِيُّ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ السَّلَامُ عَلَيْنَا وَعَلَى عِبَادِ اللهِ الصَّالِحِينَ أَشْهَدُ أَنَّ لَا إِلَهَ إِلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ وَأَنَّ مُحَمَّدًا عَبْدُهُ وَرَسُولُهُ قَالَ عُمَرُ ؓ ابْدَءُوا بِأَنْفُسِكُمْ بَعْدَ رَسُولِ اللهِ ﷺ وَسَلِّمُوا عَلَى عِبَادِ اللهِ الصَّالِحِينَ