Messenger of Allah ﷺ stood up for the prayer and we too stood up along with him. Then a bedouin shouted while offering prayer. "O Allah! Bestow Your Mercy on me and Muhammad only and do not bestow it on anybody else along with us." When the Prophet ﷺ had finished his prayer with Taslim, he said to the Bedouin, "You have limited (narrowed) a very vast (thing)," meaning Allah's Mercy.

قَامَ رَسُولُ اللَّهِ ﷺ فِي صَلاَةٍ وَقُمْنَا مَعَهُ فَقَالَ أَعْرَابِيٌّ وَهْوَ فِي الصَّلاَةِ اللَّهُمَّ ارْحَمْنِي وَمُحَمَّدًا وَلاَ تَرْحَمْ مَعَنَا أَحَدًا فَلَمَّا سَلَّمَ النَّبِيُّ ﷺ قَالَ لِلأَعْرَابِيِّ لَقَدْ حَجَّرْتَ وَاسِعًا يُرِيدُ رَحْمَةَ اللَّهِ