It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) stopped between Arafat and Muzdalifah only so that water could be drained.
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2464
Hadith Gradingحکم دارالسلام:صحيح، وهذا إسناد ضعيف لجهالة الراوي عن ابن عباس