When the deputation of Thaqif came to the Messenger of Allah ﷺ, he made them stay in the mosque, so that it might soften their hearts. They stipulated to him that they would not be called to participate in Jihad, to pay zakat and to offer prayer. The Messenger of Allah ﷺ said: You may have the concession that you will not be called to participate in jihad and pay zakat, but there is no good in a religion which has no bowing (i.e. prayer).  

أَنَّ وَفْدَ ثَقِيفٍ لَمَّا قَدِمُوا عَلَى رَسُولِ اللَّهِ ﷺ أَنْزَلَهُمُ الْمَسْجِدَ لِيَكُونَ أَرَقَّ لِقُلُوبِهِمْ فَاشْتَرَطُوا عَلَيْهِ أَنْ لاَ يُحْشَرُوا وَلاَ يُعْشَرُوا وَلاَ يُجَبُّوا فَقَالَ رَسُولُ اللَّهِ ﷺ لَكُمْ أَنْ لاَ تُحْشَرُوا وَلاَ تُعْشَرُوا وَلاَ خَيْرَ فِي دِينٍ لَيْسَ فِيهِ رُكُوعٌ  

[Machine] "A delegation from Thaqif came to the Messenger of Allah ﷺ, so he welcomed them in the mosque to make them feel comfortable in their hearts. They stipulated to the Prophet ﷺ that they should not be gathered together, forced, or appointed against their will, nor should anyone other than themselves be employed over them. He said, 'Indeed, you are not to be gathered together, forced, or appointed against your will, and no one other than yourselves should be employed over you.' The Prophet ﷺ then said, 'There is no good in a religion in which there is no bowing (in prayer).' Uthman ibn Abi al-'As said, 'O Messenger of Allah, teach me the Quran and make me the Imam of my people.'"  

أَنَّ وَفْدَ ثَقِيفٍ قَدِمُوا عَلَى رَسُولِ اللهِ ﷺ فَأَنْزَلَهُمُ الْمَسْجِدَ لِيَكُونَ أَرَقَّ لِقُلُوبِهِمْ فَاشْتَرَطُوا عَلَى النَّبِيِّ ﷺ أَنْ لَا يُحْشَرُوا وَلَا يُعْشَرُوا وَلَا يُجَبُّوا وَلَا يُسْتَعْمَلَ عَلَيْهِمْ غَيْرُهُمْ قَالَ فَقَالَ إِنَّ لَكُمْ أَنْ لَا تُحْشَرُوا وَلَا تُعْشَرُوا وَلَا يُسْتَعْمَلَ عَلَيْكُمْ غَيْرُكُمْ وَقَالَ النَّبِيُّ ﷺ لَا خَيْرَ فِي دِينٍ لَا رُكُوعَ فِيهِ قَالَ وَقَالَ عُثْمَانُ بْنُ أَبِي الْعَاصِ يَا رَسُولَ اللهِ عَلِّمْنِي الْقُرْآنَ وَاجْعَلْنِي إِمَامَ قَوْمِي