The Immigrants (Muhajirun) said: Messenger of Allah! the Helpers (Ansar) got the entire reward. He said: no, so long as you pray to Allah for them and praise them.
أَنَّ الْمُهَاجِرِينَ قَالُوا يَا رَسُولَ اللَّهِ ذَهَبَتِ الأَنْصَارُ بِالأَجْرِ كُلِّهِ قَالَ لاَ مَا دَعَوْتُمُ اللَّهَ لَهُمْ وَأَثْنَيْتُمْ عَلَيْهِمْ