Sahih Muslim 670
Sahih Muslim · Book 5: The Book of Mosques and Places of Prayer · The virtue of sitting in one’s prayer place after Subh, and the virtue of the masajid
وَحَدَّثَنَا قُتَيْبَةُ ، وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ قَالاَ حَدَّثَنَا أَبُو الأَحْوَصِ ، ح قَالَ وَحَدَّثَنَا ابْنُ الْمُثَنَّى ، وَابْنُ، بَشَّارٍ قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ ، حَدَّثَنَا شُعْبَةُ ، كِلاَهُمَا عَنْ سِمَاكٍ ، بِهَذَا الإِسْنَادِ . وَلَمْ يَقُولاَ حَسَنًا .
This hadith has been narrated by Simak with the same chain of transmitters, but no mention has been made of, enough".