It is narrated from Hazrat Aisha (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said: The prohibition of fosterage is not established by sucking milk from a woman's breast once or twice.
Hadith Referenceمسند احمد / مسند النساء / 25812
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف لانقطاعه لأن سليمان بن موسى لم يدرك عائشة