Hadith 6253
Abu Huraira told that God's messenger recited this verse, "If you turn back He will substitute other people for you and they will not be like you[*]," and the people asked, "Messenger of God, who are these people of whom God has mentioned that they will be substituted for us if we turn back and will not be like us?" He struck Salman al-Farisi on the thigh and said, "This man and his people. If the religion were in the Pleiades men from among the Persians would attain to it." *Quran 47:38 Tirmidhi transmitted it.
وَعَنْ أَبِي هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تَلَا هَذِهِ الْآيَةَ: [وَإِنْ تَتَوَلَّوْا يَسْتَبْدِلْ قَوْمًا غَيْرَكُمْ ثُمَّ لَا يَكُونُوا أمثالكم] قَالُوا: يَا رَسُولَ اللَّهِ مَنْ هَؤُلَاءِ الَّذِينَ ذَكَرَ اللَّهُ إِنْ تَوَلَّيْنَا اسْتُبْدِلُوا بِنَا ثُمَّ لَا يَكُونُوا أَمْثَالَنَا؟ فَضَرَبَ عَلَى فَخِذِ سَلْمَانَ الْفَارِسِيِّ ثُمَّ قَالَ: «هَذَا وَقَوْمُهُ وَلَوْ كَانَ الدِّينُ عِنْدَ الثُّرَيَّا لَتَنَاوَلَهُ رِجَالٌ مِنَ الْفُرْسِ» . رَوَاهُ التِّرْمِذِيّ