Mishkat al-Masabih 1868
Abu Dharr said:
I came to the Prophet when he was sitting in the shade of the Ka'ba, and when he saw me he said, 
“By the Lord of the Ka'ba, they are the ones who suffer the greatest loss." 
I asked, “Who are they, you for whom I would give my father and my mother as ransom?" 
He replied, “Those who have most property, except those who say, ‘Take this and this and this,’ before them, behind them, on their right and on their left; but they are few." 

(Bukhari and Muslim.)
وَعَنْ أَبِي ذَرٍّ قَالَ: انْتَهَيْتُ إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَهُوَ جَالِسٌ فِي ظِلِّ الْكَعْبَةِ فَلَمَّا رَآنِي قَالَ: «هُمُ الْأَخْسَرُونَ وَرَبِّ الْكَعْبَةِ» فَقُلْتُ: فَدَاكَ أَبِي وَأُمِّي مَنْ هُمْ؟ قَالَ: 
" هُمُ الْأَكْثَرُونَ أَمْوَالًا إِلَّا مَنْ قَالَ: هَكَذَا وَهَكَذَا وَهَكَذَا مِنْ بَين يَدَيْهِ وَمن خَلفه وعني مينه وَعَن شِمَاله وَقَلِيل مَا هم "