Narrated `Aisha:
Regarding the Verse:--"They ask your instruction concerning the women. Say: Allah instructs you about them and yet whom you desire to marry." (4.127) (has been revealed regarding the case of) a man who has an orphan girl, and he is her guardian and her heir. The girl shares with him all his property, even a date-palm (garden), but he dislikes to marry her and dislikes to give her in marriage to somebody else who would share with him the property she is sharing with him, and for this reason that guardian prevents that orphan girl from marrying. So, this Verse was revealed: (And Allah's statement:) "If a woman fears cruelty or desertion on her husband's part." (4.128)
USC-MSA web (English) reference: Vol. 6, Book 60, Hadith 124
Arabic reference: Book 65, Hadith 4600