Narrated Abdullah ibn Abbas:

When this verse was revealed: "And those who hoard gold and silver," the Muslims were grieved about it. Umar said: I shall dispel your care. He, therefore, went and said: Prophet (ﷺ) of Allah, your Companions were grieved by this verse. The Messenger of Allah (ﷺ) said: Allah has made zakat obligatory simply to purify your remaining property, and He made inheritances obligatory that they might come to those who survive you. Umar then said: Allah is most great. He then said to him: Let me inform you about the best a man hoards; it is a virtuous woman who pleases him when he looks at her, obeys him when he gives her a command, and guards his interests when he is away from her.

حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَحْيَى بْنُ يَعْلَى الْمُحَارِبِيُّ، حَدَّثَنَا أَبِي، حَدَّثَنَا غَيْلاَنُ، عَنْ جَعْفَرِ بْنِ إِيَاسٍ، عَنْ مُجَاهِدٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ لَمَّا نَزَلَتْ هَذِهِ الآيَةُ ‏{‏ وَالَّذِينَ يَكْنِزُونَ الذَّهَبَ وَالْفِضَّةَ ‏}‏ قَالَ كَبُرَ ذَلِكَ عَلَى الْمُسْلِمِينَ فَقَالَ عُمَرُ - رضى الله عنه أَنَا أُفَرِّجُ عَنْكُمْ ‏.‏ فَانْطَلَقَ فَقَالَ يَا نَبِيَّ اللَّهِ إِنَّهُ كَبُرَ عَلَى أَصْحَابِكَ هَذِهِ الآيَةُ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ إِنَّ اللَّهَ لَمْ يَفْرِضِ الزَّكَاةَ إِلاَّ لِيُطَيِّبَ مَا بَقِيَ مِنْ أَمْوَالِكُمْ وَإِنَّمَا فَرَضَ الْمَوَارِيثَ لِتَكُونَ لِمَنْ بَعْدَكُمْ ‏"‏ ‏.‏ فَكَبَّرَ عُمَرُ ثُمَّ قَالَ لَهُ ‏"‏ أَلاَ أُخْبِرُكَ بِخَيْرِ مَا يَكْنِزُ الْمَرْءُ الْمَرْأَةُ الصَّالِحَةُ إِذَا نَظَرَ إِلَيْهَا سَرَّتْهُ وَإِذَا أَمَرَهَا أَطَاعَتْهُ وَإِذَا غَابَ عَنْهَا حَفِظَتْهُ ‏"‏ ‏.‏