Musnad Ahmad 21468

Translation

✧ He asked him about the first mosque set up for people. He said: 'The Sacred Mosque, then the House of Jerusalem.' He was asked: 'How long between them?' He said: 'Forty years. And wherever prayer overtakes you, then pray, for that is a mosque.'

Grades by grader

Narrators

1. 1
   Abū Dharr al-Ghifārī

   Companion (ṣaḥābī)d. 31 AH, or: 32 AH
   أَبُو ذَرٍّ الْغِفَارِيُّالصحابي
   عن
2. 2
   his father

   trustworthy (thiqah)d. during the caliphate of ʿAbd al-Malik
   أَبِيهِثقة .
   يحدث عن
3. 3
   Ibrāhīm al-Taymī

   trustworthy (thiqah), except that he narrates mursal reports and commits tadlīs (tadlīs)d. 92 AH, or 93 AH, or 94 AH, or 95 AH
   إِبْرَاهِيمَ التَّيْمِيَّثقة إلا أنه يرسل ويدلس
   سمعت
4. 4
   al-Aʿmash

   Trustworthy (thiqah), a retentive memorizer (ḥāfiẓ), knowledgeable in the recitations (qirāʾāt), scrupulous (wariʿ), but he practiced concealment (tadlīs)d. Abū ʿAwānah said, and ʿAbd Allāh b. Dāwūd: 147 AH. Wakīʿ said, and more than one: 148 AH. And al-Khaṭīb considered it correct. Also said: 145 AH
   سُلَيْمَانَثقة حافظ , عارف بالقراءات ورع لكنه يدلس
   عن
5. 5
   Shuʿbah

   Trustworthy (thiqah), a retentive memorizer (ḥāfiẓ), meticulous (mutqin)d. 160 AH
   شُعْبَةُثقة حافظ , متقن
   حدثنا
6. 6
   Muḥammad b. Jaʿfar

   Trustworthy (thiqah), his book was sound (ṣaḥīḥ al-kitāb), except that he had some heedlessness (ghaflah)d. 192 AH or 193 AH or 194 AH
   مُحَمَّدُ بْنُ جَعْفَرٍثقة صحيح الكتاب إلا أن فيه غفلة
   حدثنا
7. 7
   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.