Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that he asked the Prophet (peace and blessings be upon him) (the narrator is in doubt; perhaps the wording is:) a man asked the Prophet (peace and blessings be upon him), saying: Whose testimony among witnesses is valid regarding breastfeeding? The Prophet (peace and blessings be upon him) said: That of one man or one woman. In one narration the wording is: "That of one man and one woman."
Ahmad and al-Tabarani in al-Mu'jam al-Kabir recorded it; its chain contains Muhammad bin Abd al-Rahman bin al-Baylamani, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأحكام / 7044
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه احمد فى المسند (35/2 و 109/2) ، أخرجه مسند أحمد برقم: 4892، 4893، وأخرجه المعجم الكبير للطبراني برقم: 6266»