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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:3585 – Ibrāhīm b. Mūsá al-Rāzī > ʿĪsá > Usāmah > ʿAbdullāh b. Rāfiʿ > Um Salamah

I decide between you on the basis of my opinion in cases about which no revelation has been sent down to me.  

أبو داود:٣٥٨٥ – حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُوسَى الرَّازِيُّ أَخْبَرَنَا عِيسَى حَدَّثَنَا أُسَامَةُ عَنْ عَبْدِ اللَّهِ بْنِ رَافِعٍ قَالَ سَمِعْتُ أُمَّ سَلَمَةَ

عَنِ النَّبِيِّ ﷺ بِهَذَا الْحَدِيثِ قَالَ يَخْتَصِمَانِ فِي مَوَارِيثَ وَأَشْيَاءَ قَدْ دَرَسَتْ فَقَالَ إِنِّي إِنَّمَا أَقْضِي بَيْنَكُمْ بِرَأْيِي فِيمَا لَمْ يُنْزَلْ عَلَىَّ فِيهِ