Hadith Narrated By Mahmud bin Labid

Allah's Messenger (PBUH) said: The most dreadful thing which I fear about you is minor polytheism. The companions asked: What is the minor polytheism? He said: It is hypocrisy; and he added that on the Day of Judgment, when rewarding people for their deeds, Allah (SWT) will say to the hypocrites: Go to those for the sake of whom you used to perform good deeds; and see whether you can get any reward from them. (This Hadith is sound and mentioned in Musnad Ahmad).