(51) باب الْقَدْرِ الَّذِي يُحَرِّمُ مِنَ الرَّضَاعَةِ .
It was narrated that 'Aishah said:
"The Messenger of Allah said: 'Suckling once or twice does not make (marriage) prohibited.'" (RU)
Reference (RU): Sunan an-Nasa'i 3310 (RU)
In-book reference (RU): Book 26, Hadith 115 (RU)
English translation (RU): Vol. 4, Book 26, Hadith 3312 (RU)