God Tested the Believers through the Expedition to Tabuk

لَقَد تابَ اللَّهُ عَلَى النَّبِيِّ وَالمُهاجِرينَ وَالأَنصارِ الَّذينَ اتَّبَعوهُ في ساعَةِ العُسرَةِ مِن بَعدِ ما كادَ يَزيغُ قُلوبُ فَريقٍ مِنهُم ثُمَّ تابَ عَلَيهِم ۚ إِنَّهُ بِهِم رَءوفٌ رَحيمٌ

وَعَلَى الثَّلاثَةِ الَّذينَ خُلِّفوا حَتّىٰ إِذا ضاقَت عَلَيهِمُ الأَرضُ بِما رَحُبَت وَضاقَت عَلَيهِم أَنفُسُهُم وَظَنّوا أَن لا مَلجَأَ مِنَ اللَّهِ إِلّا إِلَيهِ ثُمَّ تابَ عَلَيهِم لِيَتوبوا ۚ إِنَّ اللَّهَ هُوَ التَّوّابُ الرَّحيمُ

“Allah has turned towards the Prophet, and the Muhajirun and the Ansar, those who followed him at the ‘time of difficulty’, after the hearts of a group of them had almost deviated. Then He turned towards them – He is All-Gentle, Most Merciful to them – and also towards the three who were left behind (Ka’b ibn Malik, Hilal ibn Umayyah, Murarah ibn al-Rabi’) so that when the earth became narrow for them, for all its great breadth, and their own selves became constricted for them and they realised that there was no refuge from Allah except in Him, He turned to them so that they might turn to Him. Allah is the Ever-Returning, the Most Merciful.” — Qur’an 9: 117-118