It is narrated from Hazrat Ruifa’ (may Allah be pleased with him) that the Prophet (peace be upon him) forbade intercourse with a slave woman before her menstruation period, and also with a pregnant woman until she gives birth.
Hadith Referenceمسند احمد / مسند الشاميين / 16993
Hadith Gradingحکم دارالسلام:إسناده ضعيف لجهالة حال شيبان بن أمية، وقد اختلف فيه على عياش بن عباس