What Becomes Unlawful As A Result Of Breast-feeding Sunan an-Nasa'i 3300

Arabic hadith text
أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ أَنْبَأَنَا مَالِكٌ، قَالَ حَدَّثَنِي عَبْدُ اللَّهِ بْنُ دِينَارٍ، عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ مَا حَرَّمَتْهُ الْوِلاَدَةُ حَرَّمَهُ الرَّضَاعُ ‏"
Translation
It was narrated from 'Aishah that the Prophet said

"What becomes unlawful (for marriage) through birth becomes unlawful through breast-feeding."