Musnad Ahmad 7029

Translation

✧ Among the greatest of major sins is that a man curses his parents. They said: O Messenger of Allah, how does a man curse his parents? He said: A man insults another man's father, so the other insults his father, and a man insults another man's mother, so the other 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
   سمعت
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 الرَّحْمَنِثقة.
   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
   أَبِيهِوكان ثقة فاضلا عابدا
   عن
4. 4
   Ibrāhīm b. Saʿd Abū Isḥāq al-Zuhrī

   Trustworthy (thiqah) and an authority (ḥujjah); he was spoken about without any valid ground for criticism.d. 182 AH, or 183 AH, or 184 AH, or 185 AH
   أَبِيثقة حجة ، تُكُلِّم فيه بلا قادح
   حدثنا
5. 5
   Yaʿqūb

   Trustworthy (thiqah), excellent (fāḍil).d. 208 AH
   يَعْقُوبُثقة فاضل .
   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.