Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: I heard the Messenger of Allah (peace and blessings be upon him) say at Mina: "If the people of Jam' (Muzdalifah) knew with whom they have alighted, they would rejoice at the glad tidings of bounty after the forgiveness."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10976