Hadiths 7.46 to 7.48

7.46:
Narrated Abu Huraira: The Prophet forbade that a woman should
be married to a man along with her paternal aunt or with her
maternal aunt (at the same time). Az−Zuhri (the sub−narrator)
said: There is a similar order for the paternal aunt of the
father of one's wife, for 'Ursa told me that `Aisha said,
"What is unlawful because of blood relations, is also unlawful
because of the corresponding foster suckling relations."

7.47:
Narrated Ibn `Umar : Allah's Apostle forbade Ash−Shighar,
which means that somebody marries his daughter to somebody
else, and the latter marries his daughter to the former
without paying Mahr.

7.48:
Narrated Hisham's father: Khaula bint Hakim was one of those
ladies who presented themselves to the Prophet for marriage.
`Aisha said, "Doesn't a lady feel ashamed for presenting
herself to a man?" But when the Verse: "(O Muhammad) You may
postpone (the turn of) any of them (your wives) that you
please,' (33.51) was revealed, " `Aisha said, 'O Allah's Apostle! I do
not see, but, that your Lord hurries in pleasing you.' "