Musnad Ahmad 6411

Translation

✧ No man may sell over the sale of his brother, nor propose over the proposal of his brother, except with his permission — and sometimes he said: "unless he permits him."

Grades by grader

Narrators

1. 1
   ʿAbdullāh b. ʿUmar b. al-Khaṭṭāb

   One of the Companions who narrated most often, and one of the ʿAbādilah; he was among the people most strict in following the narrations (athar).d. 72 AH, or 73 AH, or 74 AH, also said: 75 AH
   عَبْدُ اللهِ بْنُ عُمَرَ بْنِ الْخَطَّابِأحد المكثرين من الصحابة والعبادلة ، وكان من أشد الناس اتباعا للأثر
   عن
2. 2
   Nāfiʿ mawlá Ibn ʿUmar

   trustworthy (thiqah), reliable (thabt), a well-known jurist (faqīh)d. 116 AH, or 117 AH, or 118 AH, or 119 AH, or 120 AH
   نَافِعٍثقة ثبت فقيه مشهور
   عن
3. 3
   Ayyūb al-Sakhtiyānī

   Trustworthy (thiqah), firmly reliable (thabt), an authority (ḥujjah), one of the leading jurists and devout worshippersd. 130 AH, or 131 AH, or 132 AH, also said: 124 AH, also said: 125 AH, also said: 129 AH
   أَيُّوبَثقة ثبت حجة ، من كبار الفقهاء العباد
   عن
4. 4
   Ḥammād b. Zayd

   Trustworthy (thiqah), firmly reliable (thabt), a jurist (faqīh).d. 177 AH, also said 179 AH
   حَمَّادٌثقة ثبت ، فقيه.
   حدثنا
5. 5
   Abū al-Nuʿmān

   trustworthy and reliable (thiqah thabt); his memory changed at the end of his life (taghayyara fī ākhir ʿumrihi)d. 224, also said: 223
   عَارِمٌثقة ثبت ، تغير في آخر عمره
   حدثنا
6. 6
   Aḥmad b. Ḥanbal

   Trustworthy (thiqah), a memorizer (ḥāfiẓ), a jurist (faqīh), an authority (ḥujjah).d. 241 AH, Abū Umayyah Muḥammad b. Ibrāhīm al-Ṭarsūsī said: 242 AH, and no one followed him in his view
   أحمد بن حنبلثقة حافظ فقيه حجة

Who each narrator was and how reliable, from hdith.com

Latin names and English verdicts with a dotted underline are machine translations, not reviewed.