Sayyiduna Abu Huraira (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: "There is a specific part of a bone in the human body which the earth never consumes; from it, he will be resurrected on the Day of Judgment." The people asked: O Messenger of Allah (peace and blessings be upon him)! Which bone is that? The Prophet Muhammad (peace and blessings be upon him) said: "A specific part of the backbone."
Hadith Referenceصحیح ابن حبان / كتاب الجنائز وما يتعلق بها مقدما أو مؤخرا / 3139
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: ق؛ إلا قوله «أبداً» - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطصحيح