Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: A slave woman's womb is to be confirmed clear (istibra') by one menstrual period.
Tabarani recorded it, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطلاق / 7822
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (9677)»