Sahih Bukhari
Obligatory Charity Tax (Zakat)
Volume: 002 / Book Number: 024 / Hadith Number: 555
Narrated Ash-sha'bi:
The clerk of Al-Mughira bin Shu'ba narrated, "Muawiya wrote to Al-Mughira bin Shu'ba: Write to me something which you have heard from the Prophet (p.b.u.h) ." So Al-Mughira wrote: I heard the Prophet saying, "Allah has hated for you three things:
1. Vain talks, (useless talk) that you talk too much or about others.
2. Wasting of wealth (by extravagance)
3. And asking too many questions (in disputed religious matters) or asking others for something (except in great need). (See Hadith No. 591, Vol. Ill)