It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) that some people saw a fire in the graveyard, so they came to it, and they saw that the Messenger of Allah (peace and blessings be upon him) was in the grave, saying: "Hand me your companion." He was the man who used to raise his voice when making remembrance (dhikr).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 7045