Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated that the Messenger of Allah (peace and blessings be upon him) forbade marrying a woman and her paternal niece together, or a niece and her paternal aunt together; likewise, marrying a woman and her maternal niece together, or a niece and her maternal aunt together. Neither should the elder be married along with the younger, nor the younger along with the elder.
Hadith Referenceسنن دارمي / من كتاب النكاح / 2215
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):إسناده صحيح والحديث متفق عليه، [مكتبه الشامله نمبر: 2224]
Hadith Takhrijاس روایت کی سند صحیح اور حدیث متفق علیہ ہے۔ دیکھئے: [بخاري 5109] ، [مسلم 1408] ، [أبوداؤد 2065] ، [ترمذي 1126] ، [نسائي 3288] ، [ابن ماجه 1929] ، [أبويعلی 6641] ، [ابن حبان 4068]
Brief Explanation
(Commentary on Hadith 2214)
That is, if someone has married a woman’s niece (brother’s daughter), then during her lifetime he should not marry her paternal aunt; and if he has married the niece (sister’s daughter), then it is not permissible for him to marry her maternal aunt; and if he has married the paternal aunt, then he should not marry her niece (brother’s daughter); and similarly, if he has married the maternal aunt, then he should not marry the niece (sister’s daughter).