Sayyiduna Muhammad bin Abdullah bin Jahsh (may Allah be pleased with him) narrates: We were with the Messenger of Allah (peace and blessings be upon him) in the courtyard of the mosque when he (peace and blessings be upon him) raised his head towards the sky and said: "Subhan Allah (Glory be to Allah)! What severity has been sent down?" We remained in that state for the rest of our day and night. Then, when morning came, I went to the Prophet (peace and blessings be upon him) and said: O Messenger of Allah! What severity has been sent down? He (peace and blessings be upon him) said: "If a man were killed in the path of Allah, then brought back to life, then killed, then brought back to life, he would not enter Paradise while he has a debt upon him."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16609