مسند أحمد

It was narrated from Abu Dharr that he came and asked permission to enter upon `Uthman bin ‘Affan (رضي الله عنه) He gave him permission and he had a stick in his hand ‘Uthman (رضي الله عنه) said. O Ka`b, `Abdur-Rahman has died and left behind wealth. What do you think of him? He said: If he paid the dues of Allah, then that is fine. Abu Dharr raised his stick and struck Ka`b, and said: I heard the Messenger of Allah (ﷺ) say: `I would not like to have this mountain in gold and spend it (for the sake of Allah) and Allah accept it from me, and leave behind six Ooqiyyah of it.” I adjure you by Allah, O `Uthman, did you hear him? - [He said it] three times, He said: Yes.