Musannaf Ibn Abi Shayba 8:1039

Abu Bakr narrated to us, he said: Ghundar narrated to us, from Ibn Abi Arubah, from Qatadah, from Sa’id ibn al-Musayyib, Sulayman ibn Yasar, ‘Ata’ ibn Abi Rabah, and Salim ibn ‘Abd Allah; they said: If he stands at ‘Arafat, then he has attained the Hajj, even if he did not catch the people at Jam’ (Muzdalifah).