Sahih Bukhari Volume 2, Book 24, Hadith 1409

قَالَ لِي خَلِيلِي ـ قَالَ قُلْتُ مَنْ خَلِيلُكَ قَالَ النَّبِيُّ صلى الله عليه وسلم ـ ‏"‏ يَا أَبَا ذَرٍّ أَتُبْصِرُ أُحُدًا ‏"‏‏.‏ قَالَ فَنَظَرْتُ إِلَى الشَّمْسِ مَا بَقِيَ مِنَ النَّهَارِ وَأَنَا أُرَى أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم يُرْسِلُنِي فِي حَاجَةٍ لَهُ، قُلْتُ نَعَمْ‏.‏ قَالَ ‏"‏ مَا أُحِبُّ أَنَّ لِي مِثْلَ أُحُدٍ ذَهَبًا أُنْفِقُهُ كُلَّهُ إِلاَّ ثَلاَثَةَ دَنَانِيرَ ‏"‏‏.‏ وَإِنَّ هَؤُلاَءِ لاَ يَعْقِلُونَ، إِنَّمَا يَجْمَعُونَ الدُّنْيَا‏.‏ لاَ وَاللَّهِ لاَ أَسْأَلُهُمْ دُنْيَا، وَلاَ أَسْتَفْتِيهِمْ عَنْ دِينٍ حَتَّى أَلْقَى اللَّهَ‏

although my friend told me." I asked, "Who is your friend?" He said, "The Prophet said (to me), 'O Abu Dhar! Do you see the mountain of Uhud?' And on that I (Abu Dhar) started looking towards the sun to judge how much remained of the day as I thought that Allah's Apostle wanted to send me to do something for him and I said, 'Yes!' He said, 'I do not love to have gold equal to the mountain of Uhud unless I spend it all (in Allah's cause) except three Dinars (pounds). These people do not understand and collect worldly wealth. No, by Allah, Neither I ask them for worldly benefits nor am I in need of their religious advice till I meet Allah, The Honourable, The Majestic."