It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "The hands are raised only in seven places: when beginning the prayer; when entering al-Masjid al-Haram and looking at the House; when standing on al-Safa; when standing on al-Marwah; when stopping with the people on the evening of Arafah and at Muzdalifah; and at the two stations when stoning the Jamrah."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12020