Musnad Ahmad 7004

Translation

✧ The Messenger of Allah ﷺ said: "Verily, the greatest of major sins is disobedience to parents." It was said: "What is disobedience to parents?" He said: "It is when a person insults another person, and that person insults his father, and insults his mother."

Grades by grader

Narrators

1. 1
   ʿAbdullāh b. ʿAmr b. al-ʿĀṣ

   One of the early Companions (sābiqūn), among those who narrated abundantly, and one of the jurist ʿAbdullāhs (al-ʿabādilah)d. 63 AH, or 65 AH, or 68 AH, or 69 AH; also said 67 AH, also said 73 AH, also said 77 AH
   عَبْدُ اللهِ بْنُ عَمْرِو بْنِ الْعَاصِأحد السابقين ، المكثرين من الصحابة ، وأحد العبادلة الفقهاء
   عن
2. 2
   Ḥumayd b. ʿAbd al-Raḥman al-Qurashī

   Trustworthy (thiqah).d. 95 AH, also said 105 AH, which is an error
   حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍثقة.
   عن
3. 3
   Saʿd b. Ibrāhīm b. ʿAbd al-Raḥman b. ʿAwf

   He was trustworthy (thiqah), virtuous, and devout.d. 125 AH or 126 AH or 127 AH or 128 AH or 130 AH
   سَعْدُ بْنُ إِبْرَاهِيمَوكان ثقة فاضلا عابدا
   حدثنا
4. 4
   Ḥammād b. Salamah

   trustworthy (thiqah), devout (ʿābid), the most reliable of people in narrating from Thābit; his memory changed towards the end of his lifed. 167 AH, or 165 AH.
   حَمَّادُ بْنُ سَلَمَةَثقه عابد ، أثبت الناس في ثابت ، وتغير حفظه بآخره
   حدثنا
5. 5
   ʿAffān

   trustworthy, precise (thiqah thabt)d. 219 AH, or 220 AH
   عَفَّانُثقة ثبت
   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.