This hadeeth comes under the following chapter: EXCELLENCE OF SPENDING AND GIVING SADAQA TO RELATIVES, TO WIFE, TO CHILDREN, AND PARENTS EVEN IF THEY ARE POLYTHEISTS
A hadith like this has been narrated on the authority of Zainab the wife of 'Abdullah, and she said: I was in the mosque and the Prophet of Allaah (sallAllaahu alayhi wa sallam) saw me and said: Give Sadaqa even though it is out of your jewellery. The rest of the hadith is the same.