Musnad Ahmad 3599

Translation

Then Abū Bakr came to him with a carved rock, so he collected water in it and Abū Bakr and I drank from it. Then I went to him afterwards and said, "Teach me from this Quran." He said, "Indeed, you are a young boy to be taught." I then took from him seventy surahs."

Grades by grader

Narrators

1. 1
   ʿAbdullāh b. Masʿūd

   One of the earliest and foremost (al-sābiqūn al-awwalūn), and one of the leading scholars among the Companions; his virtues are manyd. 28 AH, or 32 AH, 33 AH
   عَبْدُ اللهِ بْنُ مَسْعُودٍمن السابقين الأولين ، ومن كبار العلماء من الصحابة ، مناقبه جمة
   عن
2. 2
   Zirr b. Ḥubaysh al-Thaʿlabī

   trustworthy (thiqah), eminentd. 81 AH, or: 82 AH, or: 83 AH
   زر بن حبيش الثعلبيثقة جليل
   عن
3. 3
   ʿĀṣim b. Bahdalah

   Truthful (ṣadūq) with some errors (awhām)d. 127 AH, or: 128 AH
   عَاصِمٍصدوق له أوهام
   عن
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.