Abdur-Razzaq عبد الرزاق بن همام · The Book of Marriage

"None of you should propose marriage to a woman when someone else has already proposed to her."

"Aishah said: 'The Messenger of Allah married me when I was nine and I lived with him for nine years.'"

"Suckling (Al-Imlajah) once or twice does not make (marriage) prohibited." And (one of the narrators) Qatadah said (in his narration): "Suckling (Al-Massah) once or twice does not make (marriage) prohibited."

(Another chain) with a similar narration.