It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Holy Prophet (peace and blessings of Allah be upon him) said: Whoever is given some wealth and property by Allah without asking, he should accept it, because it is sustenance that Allah has sent to him.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 10358
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد فيه عبد الملك: فلم نتبين من هو