It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that he (peace and blessings be upon him) said: "The soul of the believer remains suspended by his debt until it is paid off on his behalf."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 7099
Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "The soul of the believer remains suspended as long as he owes a debt."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 7100