What are the duties of wealthy aside from zakat?

I read a hadith which says that there are other duties on a wealthy person other than zakat, well I am wondering what those duties might be. The Hadith : > Fatimah bint Qais narrated that : she asked -or, the Prophet was asked > - about Zakat, and he said: "Indeed there is a duty on wealthy aside from Zakat." Then he recited this Ayah which is in Al-Baqarah: 'It is > not Al-Birr (piety, righteousness) that you turn your faces.' > (Al-Baqarah 2:177) (Da'if) > > حَدَّثَنَا مُحَمَّدُ بْنُ أَحْمَدَ بْنِ مَدُّويَهْ، حَدَّثَنَا > الأَسْوَدُ بْنُ عَامِرٍ، عَنْ شَرِيكٍ، عَنْ أَبِي حَمْزَةَ، عَنِ > الشَّعْبِيِّ، عَنْ فَاطِمَةَ بِنْتِ قَيْسٍ، قَالَتْ سَأَلْتُ أَوْ > سُئِلَ النَّبِيُّ صلى الله عليه وسلم عَنِ الزَّكَاةِ فَقَالَ ‏"‏ إِنَّ > فِي الْمَالِ لَحَقًّا سِوَى الزَّكَاةِ ‏"‏ ‏.‏ ثُمَّ تَلاَ هَذِهِ > الآيَةَ الَّتِي فِي الْبَقَرَةِ ‏(‏ لَيْسَ الْبِرَّ أَنْ تُوَلُّوا > وُجُوهَكُمْ ‏)‏ الآيَةَ ‏.‏ And there is another one I do not remember where it is, but both are weak hadiths.