Abu Sa'id Khudri reported Allah's Messenger ( صلی اللہ علیہ وسلم ) as saying:
There would come to the people a time when a detachment would be sent for fighting in the cause of Allah and they would say: See, if you can find amongst them someone from amongst the Companions of Allah's Apostle ( صلی اللہ علیہ وسلم ). They would find a person and they would be granted victory because of him. Then a second detachment would be sent to them and they would say: Do you find amongst them one who had had the privilege of seeing the Companions of the Messenger of Allah ( صلی اللہ علیہ وسلم )? -and the victory would be granted to them because of him. Then the third detachment would be sent and it would be said to them: See, if you find amongst them (who had had the honour of seeing one) who saw those who saw the Companions of Allah's Apostle ( صلی اللہ علیہ وسلم ). Then the fourth detachment would be sent and it would be said to them: See it you find amongst them one who had the privilege (of seeing) one who saw those who saw those who saw the Companions of Allah's Apostle ( صلی اللہ علیہ وسلم ), and a person would be found and they would be granted victory because of him.