It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) that the wife of Thabit bin Qays (may Allah be pleased with him) obtained khul' from him, and the Prophet (peace and blessings be upon him) set "her 'iddah at one menstrual period."
Likewise Ali bin Bahr, Isma'il bin Yazid al-Basri and others narrated it from Hisham, from Ma'mar, as connected (mawsul). [Da'if (weak)]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب العدد / 15597