Jami` at-Tirmidhi, Book 36, Hadith 65 (In-Book) ⓘ

Fadalah bin 'Ubaid narrated that when the Messenger of Allah (s.a.w) would lead the people in Salat some men would collapse among them during the Salat due to hunger – they were among them Ashab As-suffah – such that a Bedouin would say : 'These people are mad' or "possessed." So when the Messenger of Allah (s.a.w) finished the Salah, he turned to them and said: 'If you knew what was in store for you with Allah then you would love to be increased in poverty and need.'” Fadalah said: “And on that day, I was with the Messenger of Allah(s.a.w).” (Hasan)

حَدَّثَنَا الْعَبَّاسُ بْنُ مُحَمَّدٍ الدُّورِيُّ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يَزِيدَ، حَدَّثَنَا حَيْوَةُ بْنُ شُرَيْحٍ، أَخْبَرَنِي أَبُو هَانِئٍ الْخَوْلاَنِيُّ، أَنَّ أَبَا عَلِيٍّ، عَمْرَو بْنَ مَالِكٍ الْجَنْبِيَّ أَخْبَرَهُ عَنْ فَضَالَةَ بْنِ عُبَيْدٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ إِذَا صَلَّى بِالنَّاسِ يَخِرُّ رِجَالٌ مِنْ قَامَتِهِمْ فِي الصَّلاَةِ مِنَ الْخَصَاصَةِ وَهُمْ أَصْحَابُ الصُّفَّةِ حَتَّى تَقُولَ الأَعْرَابُ هَؤُلاَءِ مَجَانِينُ أَوْ مَجَانُونَ فَإِذَا صَلَّى رَسُولُ اللَّهِ صلى الله عليه وسلم انْصَرَفَ إِلَيْهِمْ فَقَالَ ‏ "‏ لَوْ تَعْلَمُونَ مَا لَكُمْ عِنْدَ اللَّهِ لأَحْبَبْتُمْ أَنْ تَزْدَادُوا فَاقَةً وَحَاجَةً ‏" ‏ ‏.‏ قَالَ فَضَالَةُ وَأَنَا يَوْمَئِذٍ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏