Sahih Muslim , Book 4, Hadith 1330 (USC-MSA) ⓘ
A hadith like this, i. e." We used to observe evening prayer...." so on and so forth, has been narrated by Rafi' b. Khadij by another chain of transmitters.
وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ الْحَنْظَلِيُّ، أَخْبَرَنَا شُعَيْبُ بْنُ إِسْحَاقَ الدِّمَشْقِيُّ، حَدَّثَنَا الأَوْزَاعِيُّ، حَدَّثَنِي أَبُو النَّجَاشِيِّ، حَدَّثَنِي رَافِعُ بْنُ خَدِيجٍ، قَالَ كُنَّا نُصَلِّي الْمَغْرِبَ . بِنَحْوِهِ .
also referenced under: Book 5, Hadith 278 (In-Book) & Hadith 637 (Reference)