كتاب الزكاة
12  
The Book of Zakat
(28)
Chapter: Encouragement to spend, and it is disliked to count how much
(28)
باب الْحَثِّ فِي الإِنْفَاقِ وَكَرَاهَةِ الإِحْصَاءِ ‏‏
Sahih Muslim 1029 d

Asma', daughter of Abu Bakr, reported that abe came to the Messenger of Allah (may peace he upon him) and said:

Apostle of Allah, I have nothing with me, but only, that which is given to me by Zubair (for household expenses). Is there any sin for me if I spend out of that which is given to me (by Zabair)? Upon this he (the Holy Prophet) said: Spend according to your means; and do not hoard, for Allah will withhold from you.
وَحَدَّثَنِي مُحَمَّدُ بْنُ حَاتِمٍ، وَهَارُونُ بْنُ عَبْدِ اللَّهِ، قَالاَ حَدَّثَنَا حَجَّاجُ بْنُ مُحَمَّدٍ، قَالَ قَالَ ابْنُ جُرَيْجٍ أَخْبَرَنِي ابْنُ أَبِي مُلَيْكَةَ، أَنَّ عَبَّادَ بْنَ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ، أَخْبَرَهُ عَنْ أَسْمَاءَ، بِنْتِ أَبِي بَكْرٍ أَنَّهَا جَاءَتِ النَّبِيَّ صلى الله عليه وسلم فَقَالَتْ يَا نَبِيَّ اللَّهِ لَيْسَ لِي شَىْءٌ إِلاَّ مَا أَدْخَلَ عَلَىَّ الزُّبَيْرُ فَهَلْ عَلَىَّ جُنَاحٌ أَنْ أَرْضَخَ مِمَّا يُدْخِلُ عَلَىَّ فَقَالَ ‏ "‏ ارْضَخِي مَا اسْتَطَعْتِ وَلاَ تُوعِي فَيُوعِيَ اللَّهُ عَلَيْكِ ‏"‏ ‏.‏
Reference : Sahih Muslim 1029d
In-book reference : Book 12, Hadith 115
USC-MSA web (English) reference : Book 5, Hadith 2246
  (deprecated numbering scheme)