Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated from the Messenger of Allah (peace and blessings be upon him), he (peace be upon him) said: "Whoever is given something without asking for it and he accepts it, then it is a provision that Allah has sent to him."
Hadith Referenceمسند اسحاق بن راهويه / كتاب الهبة و فضلها / 492
Hadith Takhrij«مسند احمد : 292/2 . قال شعيب الارناوط : صحيح لغيره . مسند ابي يعلي : 226/2 .»