It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings of Allah be upon him) said: "Whoever sleeps while there is grease on his hand and he does not wash it off, then if something bites him, he should blame only himself."
Hadith Referenceالادب المفرد / كتاب / 1219
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه الطبراني فى الأوسط : 597 و البزار : 2886 و أبونعيم فى أخبار اصفهان : 327/2 - أنظر الصحيحة : 2956»