(43) بَابُ فَضْلِ مَنْ عَالَ ابْنَتَهُ الْمَرْدُودَةَ
Musa ibn 'Ali reported that the Prophet, may Allah bless him and granthim peace, said, "Shall I show you the greatest sadaqa (or one ofthe greatest forms of sadaqa)?" He replied, "Yes, indeed, Messengerof Allah!" He went on, "To provide for your daughter when she is returnedto you and you are her sole source of provision."
Reference: Al-Adab Al-Mufrad 80
In-book reference: Book 4, Hadith 5
English translation: Book 4, Hadith 80