Hadith Narrated By Ubai bin Kab

During the lifetime of Allah's Messenger (PBUH), two men attributed their family lineage. One of them said: I am such and such son of such and such but who are you? You have no mother. Allah's Messenger (PBUH) added: In the lifetime of Musa (Moses[PBUH]), two men attributed their lineage. One of them said: I am such and such son of such and such till he counted nine. So who are you? You have no mother. The second said: I am such and such son of such and such son of Islam. The Prophet (SAW) said: Allah revealed to Musa (PBUH) to address these attributers: As for you who attributed yourself to nine, they are all in Hell and you are the tenth. As for you who attributed yourself to two (and Islam), they are in Paradise and you are the third. (This Hadith is reported in Musnad Ahmad and its chain of authorities is sound.)