Narrated Jundub:

A desert Arab came and making his camel kneel and tethering it, entered the mosque and prayed behind the Messenger of Allah (ﷺ). When The Messenger of Allah (ﷺ) had given the salutation, he went to his riding beast and, after untethering and riding it, he called out: O Allah, show mercy to me and to Muhammad and associate no one else in Your mercy to us. The Messenger of Allah (ﷺ) then said: Do you think that he or his camel is farther astray? Did you not listen to what he said? They replied: Certainly.

حَدَّثَنَا عَلِيُّ بْنُ نَصْرٍ، أَخْبَرَنَا عَبْدُ الصَّمَدِ بْنُ عَبْدِ الْوَارِثِ، مِنْ كِتَابِهِ قَالَ حَدَّثَنِي أَبِي، حَدَّثَنَا الْجُرَيْرِيُّ، عَنْ أَبِي عَبْدِ اللَّهِ الْجُشَمِيِّ، قَالَ حَدَّثَنَا جُنْدُبٌ، قَالَ جَاءَ أَعْرَابِيٌّ فَأَنَاخَ رَاحِلَتَهُ ثُمَّ عَقَلَهَا ثُمَّ دَخَلَ الْمَسْجِدَ فَصَلَّى خَلْفَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَلَمَّا سَلَّمَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَتَى رَاحِلَتَهُ فَأَطْلَقَهَا ثُمَّ رَكِبَ ثُمَّ نَادَى اللَّهُمَّ ارْحَمْنِي وَمُحَمَّدًا وَلاَ تُشْرِكْ فِي رَحْمَتِنَا أَحَدًا ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏

‏ أَتَقُولُونَ هُوَ أَضَلُّ أَمْ بَعِيرُهُ أَلَمْ تَسْمَعُوا إِلَى مَا قَالَ ‏

‏ ‏.‏ قَالُوا بَلَى ‏.‏