أَخْبَرَنَا مُحَمَّدُ بْنُ عُبَيْدٍ، قَالَ حَدَّثَنَا عَلِيُّ بْنُ هَاشِمٍ، ‏{‏ عَنْ هِشَامِ بْنِ عُرْوَةَ، ‏}‏ عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، عَنْ أَبِيهِ، عَنْ عَمْرَةَ، قَالَتْ سَمِعْتُ عَائِشَةَ، تَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ يَحْرُمُ مِنَ الرَّضَاعِ مَا يَحْرُمُ مِنَ الْوِلاَدَةِ ‏"‏ ‏.‏

It was narrated that 'Amrah said: "I heard 'Aishah say: The Messenger of Allah said: 'What becomes unlawful (for marriage) through breast-feeding is that which becomes unlawful through birth.'" Translation Not Available

Book Ref: Sunan An Nisai Book 26 Hadith 3303
Web Ref:  Sunan An Nisai Vol 4 Book 26 Hadith 3305