Musnad Ahmad 6759

Translation

✧ The Messenger of God ﷺ was asked about the firstborn offering. He said: The firstborn offering is a right, and if you leave it until it becomes a shughzubb, a one-year-old camel, or a two-year-old camel, and you load it for the sake of God, or give it to a widow, it is better than slaughtering it when its flesh sticks to its fur, upsetting your vessel, and bereaving your she-camel.

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
   his father

   Truthful (ṣadūq); his hearing from his grandfather is established (thābit)d. between 81 and 90 AH
   أَبِيهِصدوق ، ثبت سماعه من جده
   يحدث عن
3. 3
   ʿAmr b. Shuʿayb

   truthful (ṣadūq)d. 118 AH
   عَمْرَو بْنَ شُعَيْبٍصدوق
   سمعت
4. 4
   Dāwūd b. Qays

   trustworthy (thiqah), excellent (fāḍil)d. during the caliphate of Abū Jaʿfar
   دَاوُدُ بْنُ قَيْسٍثقة فاضل
   أخبرنا
5. 5
   ʿAbd al-Razzāq

   Trustworthy (thiqah), a retentive memorizer (ḥāfiẓ), a renowned author (muṣannif); he went blind at the end of his life and his memory changed (taghayyara), and he had Shiite leanings (kāna yatashayyaʿ)d. 211 AH
   عَبْدُ الرَّزَّاقِثقة حافظ مصنف شهير ، عمي في آخر عمره فتغير ، وكان يتشيع
   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.