Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tabarani:9203Isḥāq b. Ibrāhīm > ʿAbd al-Razzāq > al-Thawrī > Salamah b. Kuhayl > Mustawrid b. al-Aḥnaf > Jāʾ a man > Ibn Masʿūd

[Machine] Indeed, my uncle married his cousin, and she gave birth to me, and he wants to secretly take them away. He said, "That is not for him."  

الطبراني:٩٢٠٣حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ أَنَا عَبْدُ الرَّزَّاقِ أَنَا الثَّوْرِيُّ عَنْ سَلَمَةَ بْنِ كُهَيْلٍ عَنْ مُسْتَوْرِدِ بْنِ الْأَحْنَفِ قَالَ جَاءَ رَجُلٌ إِلَى ابْنِ مَسْعُودٍ فَقَالَ

إِنَّ عَمِّي أَنْكَحَنِي وَلِيدَتَهُ وَإِنَّهَا وَلَدَتْ لِي وَإِنَّهُ يُرِيدُ أَنْ يَسْتَرِقَّهُمْ قَالَ «لَيْسَ ذَلِكَ لَهُ»