Hadith 8:2561
Abu Bakr narrated to us, he said: Ibn ‘Ulayyah narrated to us, from al-Taymi, from Abu Mijlaz, that he was with Ibn ‘Umar. He came to Jam‘ (Muzdalifah) and prayed the Maghrib prayer. Then he turned to us and said: "The prayer is congregational (al-salatu jami‘ah)," and he did not perform any (supererogatory) prayer between them.
حدثنا أبو بكر قال نا بن علية عن التيمي عن أبي مجلز أنه كان مع بن عمر فأتى جمعا فصلى المغرب ثم التفت إلينا فقال الصلاة جامعة ولم يتجوز بينهما