(2) باب اجْتِنَابِ الشُّبُهَاتِ فِي الْكَسْبِ
It was narrated that Abu Hurairah said:
"The Messenger of Allah said: 'There will come a time when a man will not care where his wealth comes from, whether (the source is) Halal or Haram." (ES)
Reference (ES): Sunan an-Nasa'i 4454 (ES)
In-book reference (ES): Book 44, Hadith 6 (ES)
English translation (ES): Vol. 5, Book 44, Hadith 4459 (ES)