It is narrated from Hasan (may Allah have mercy on him) that Sayyiduna Umar bin Al-Khattab (may Allah be pleased with him) made a bequest of four thousand for the mothers of his children, four thousand for each of those women.
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3313
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):رجاله ثقات غير أن منقطع الحسن لم يسمع من عمر، [مكتبه الشامله نمبر: 3324]
Hadith Takhrijاس اثر کے رجال ثقات ہیں، لیکن سند میں انقطاع ہے۔ حسن رحمہ اللہ کا لقاء سیدنا عمر رضی اللہ عنہ سے ثابت نہیں۔ دیکھئے: [ابن أبى شيبه 11021] ، [عبدالرزاق 16458] ، [ابن منصور 438]
Brief Explanation
(Commentary on Hadith 3312) By «أمهات أولاده» is meant those slave women with whom their master has had intercourse and from whom children have been born. There is no fixed share for them; therefore, in a will, the master can allocate some portion for them. And Allah knows best.