The hadith of Sayyiduna Ibn Abbas (may Allah be pleased with them both) on this subject will come in the commentary (tafsir) of Surah al-Qital. Ibn Abi Umar related: Hisham (who is Ibn Sulayman) informed us through Ibn Jurayj, from Miqsam, 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 in seven places: at the beginning of the prayer, when you see the House of Allah, on the hills of Safa and Marwah, on the evening of Arafah, at Muzdalifah (Jam'), at the two Jamrahs, and over the deceased (that is, in the funeral prayer)."
According to the imams of hadith, raising the hands in these places is a Sunnah for the acceptance of supplication and for honouring the symbols of Allah, and by the two Jamrahs is meant the first Jamrah and the middle Jamrah, where, after the stoning, one faces the qiblah and supplicates.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الحج / 1201
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف. » «أخرجه مجمع الزوائد ومنبع الفوائد برقم: 4857، وأخرجه معرفة السنن والآثار برقم: 9800، وأخرجه شرح السنة برقم: 1897، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 2513»