Abd al-Rahman bin Yazid states: I departed from Arafat with Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him). When he came to Muzdalifah, he, that is, Sayyiduna Uthman al-Ghani (may Allah be pleased with him), stood there. When the morning light appeared, Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "If the Commander of the Faithful departs now, he will be doing the right thing." Sayyiduna Abdullah (may Allah be pleased with him) had hardly finished speaking when Sayyiduna Uthman (may Allah be pleased with him) departed.
(Allamah al-Haythami says:) I say:
Ahmad recorded it within a long hadith, these are his words, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5566