It is reported on the authority of 'Abdullah bin K'ab and he was the guide of Ka'b as he lost his eyesight and he was the greatest scholar amongst his people and he retained in his mind many ahadith of the Companions of Allah's Messenger ( صلی اللہ علیہ وسلم ) . He said: I heard my father Ka'b bin Malik, and he was one of those three whose repentance was accepted (by Allah). He transmitted that he never lagged behind Allah's Messenger ( صلی اللہ علیہ وسلم ) from any expedition that he undertook except two expeditions; the rest of the hadith is the same, and in the tradition narrated through another chain of transmitters the words are: "That Allah's Messenger ( صلی اللہ علیہ وسلم ) set out on an expedition with a large number of persons more than ten thousand and this could not be recorded in the census register."