(49) باب مَا يَحْرُمُ مِنَ الرَّضَاعِ .
It was narrated from 'Aishah that the Prophet said:
"What becomes unlawful (for marriage) through breast-feeding is that which becomes unlawful through lineage." (RU)
Reference (RU): Sunan an-Nasa'i 3302 (RU)
In-book reference (RU): Book 26, Hadith 107 (RU)
English translation (RU): Vol. 4, Book 26, Hadith 3304 (RU)