Musnad Ahmad 3910

Translation

✧ A man said to Ibn Mas'ood, "How do you know that this letter (ياس) is pronounced as 'yaasin' and not 'aasin'?" Ibn Mas'ood replied, "Have you read the entire Quran?" The man said, "I have recited the detailed recitation in one rakah (unit of prayer)." Ibn Mas'ood then asked, "Is this poem not from your father? I know the verses recited by the Messenger of Allah ﷺ, who used to pair two similar verses from the beginning of the Surah. And the first Surah in which Ibn Mas'ood used this pairing methodology was Surah Al-Rahman."

Grades by grader

Other narrations of this report

Sahih Muslim 822d

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
   أن
2. 2
   Zirr b. Ḥubaysh al-Thaʿlabī

   trustworthy (thiqah), eminentd. 81 AH, or: 82 AH, or: 83 AH
   زِرٍّثقة جليل
   عن
3. 3
   ʿĀṣim b. Bahdalah

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