بَعَثَ النَّبِيُّ صلى الله عليه وسلم خَيْلاً قِبَلَ نَجْدٍ، فَجَاءَتْ بِرَجُلٍ مِنْ بَنِي حَنِيفَةَ يُقَالُ لَهُ ثُمَامَةُ بْنُ أُثَالٍ، فَرَبَطُوهُ بِسَارِيَةٍ مِنْ سَوَارِي الْمَسْجِدِ، فَخَرَجَ إِلَيْهِ النَّبِيُّ صلى الله عليه وسلم فَقَالَ أَطْلِقُوا ثُمَامَةَ . فَانْطَلَقَ إِلَى نَخْلٍ قَرِيبٍ مِنَ الْمَسْجِدِ، فَاغْتَسَلَ ثُمَّ دَخَلَ الْمَسْجِدَ فَقَالَ أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ اللَّهُ وَأَنَّ مُحَمَّدًا رَسُولُ اللَّهِ.
The Prophet (ﷺ) sent some horsemen to Najd and they brought a man called Thumama bin Uthal fromBani Hanifa. They fastened him to one of the pillars of the mosque. The Prophet (ﷺ) came and orderedthem to release him. He went to a (garden of) date-palms near the mosque, took a bath and enteredthe mosque again and said, "None has the right to be worshipped but Allah and Muhammad is HisApostle" (i.e. he embraced Islam).