Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) went to visit one of his Companions who was suffering from some illness, and I was with the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) took hold of his hand and placed his hand on his forehead (or placed his own hand on his forehead). The Prophet (peace and blessings be upon him) considered this to be part of visiting the sick. He said: "Allah Almighty says: 'This is My fire which I set upon My believing servant, so that it may be his share in place of Hell in the Hereafter.'" I say:
Ibn Majah recorded it in abridged form. Its chain contains Abd al-Rahman bin Yazid bin Tamim, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجنائز / 3778