Key Verses

1. 9:100At-Tawbah
   وَٱلسَّـٰبِقُونَ ٱلۡأَوَّلُونَ مِنَ ٱلۡمُهَٰجِرِينَ وَٱلۡأَنصَارِ وَٱلَّذِينَ ٱتَّبَعُوهُم بِإِحۡسَٰنٖ رَّضِيَ ٱللَّهُ عَنۡهُمۡ وَرَضُواْ عَنۡهُ وَأَعَدَّ لَهُمۡ جَنَّـٰتٖ تَجۡرِي تَحۡتَهَا ٱلۡأَنۡهَٰرُ خَٰلِدِينَ فِيهَآ أَبَدٗاۚ ذَٰلِكَ ٱلۡفَوۡزُ ٱلۡعَظِيمُ
   And the first to lead the way, of the Muhajirin and the Ansar, and those who followed them in goodness - Allah is well pleased with them and they are well pleased with Him, and He hath made ready for them Gardens underneath which rivers flow, wherein they will abide for ever. That is the supreme triumph.
   In context

   The leaders in faith – in terms of having good belief, words and actions – from among the Emigrants who left their homes migrating to Allah, and from among the Helpers who assisted His Messenger (peace be upon him), and those who followed the Emigrants and Helpers, Allah is pleased with them and He has accepted their actions.

2. 9:117At-Tawbah
   لَّقَد تَّابَ ٱللَّهُ عَلَى ٱلنَّبِيِّ وَٱلۡمُهَٰجِرِينَ وَٱلۡأَنصَارِ ٱلَّذِينَ ٱتَّبَعُوهُ فِي سَاعَةِ ٱلۡعُسۡرَةِ مِنۢ بَعۡدِ مَا كَادَ يَزِيغُ قُلُوبُ فَرِيقٖ مِّنۡهُمۡ ثُمَّ تَابَ عَلَيۡهِمۡۚ إِنَّهُۥ بِهِمۡ رَءُوفٞ رَّحِيمٞ
   Allah hath turned in mercy to the Prophet, and to the Muhajirin and the Ansar who followed him in the hour of hardship. After the hearts of a party of them had almost swerved aside, then turned He unto them in mercy. Lo! He is Full of Pity, Merciful for them.
   In context

   Allah has forgiven the Prophet Muhammad (peace be upon him) since he gave permission to the hypocrites to stay behind from the battle of Tabūk. He has also forgiven the Emigrants and the Helpers who did not stay behind, but followed him in the battle of Tabūk despite the intense heat, the lack of means and the powerful strength of the enemy.